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Regals Hockey #2

The E.M.M.A. Effect

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Jane Austen meets Ali Hazelwood in this steamy, friends-to-lovers, STEM rom-com! He’s her best friend’s little brother and NHL forward. She’s a computer scientist used to being in control. The E.M.M.A., her elite AI training program, claims optimizing his performance requires one the perfect match. According to its calculations, that’s her… Will Harriet discover that The E.M.M.A. knows best?

Harriet Smythe’s AI was supposed to create sports legends—not encourage her crush on her best friend’s totally off-limits, hot younger brother. But when funding runs dry, she has no choice but to enlist Gale Knight as her test subject. The same Gale she’s been secretly crushing on for years. The player who follows her every instruction with a knowing smirk that threatens to short-circuit her carefully maintained system.

Everything changes when The E.M.M.A. determines that finding Gale’s perfect match is essential to his peak performance. Even worse? According to its data, that match is Harriet.

Determined to keep things professional, she makes it search for new candidates. But as Gale dutifully endures awkward outings with pop stars and athletes, the chemistry between them only intensifies. And his willing cooperation during their sessions definitely isn’t helping her stay focused.

With her deadline approaching and The E.M.M.A. still playing cupid, Harriet must trust in pure logic, or admit that sometimes taking control means letting go.

Maybe The E.M.M.A. knows something they don’t—even if they’re not ready to compute it yet.

296 pages, Kindle Edition

First published December 2, 2025

37 people are currently reading
12449 people want to read

About the author

Lia Riley

19 books1,026 followers
Lia Riley is a contemporary romance author. USA Today describes her as "refreshing" and RT Book Reviews calls her books "sizzling and heartfelt." She loves the beach, fresh flowers, foggy redwood forests and a perfect pour over coffee. She is 25% sarcastic, 54% optimistic, and 122% bad at math (good thing she writes happy endings for a living). She and her family live mostly in Northern California.

Visit her at www.liariley.com to learn more.

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Displaying 1 - 30 of 258 reviews
Profile Image for BookishKB.
862 reviews220 followers
December 3, 2025
Bookish Thoughts
Had to DNF at forty percent. The dynamic with her younger brother’s friend gave me the ick and the writing style just was not working for me.

📅 Pub Date: December 2 2025
Thank you to HarperAudio Adult and NetGalley for the advanced listening copy. All thoughts are my own
Profile Image for Madison Warner Fairbanks.
3,431 reviews496 followers
December 2, 2025
The E.M.M.A. Effect by Lia Riley
Regals Hockey series #2. Contemporary romance, romantic comedy. Best friend’s brother troupe. Can be read as a stand-alone.
Harriet Smythe has always has a crush on her best friend’s younger brother. Using him to prove her AI program is viable will take a little convincing, but this is her future! Getting a little too close to Gale is just a minor misstep and nothing to worry about. Her AI program will pinpoint what’s needed to improve his game and they will go their separate ways. Nothing to worry about! Until the AI insists they Harriet is the answer to Gale’s regaining peak performance. And wow, does he know it. He’ll follow her every demand.

🎧 I alternated between an ebook and audiobook for this story. The narration is a duet (voices in conversation) by Alexander Cendese, Brittany Pressley, and Samantha Summers. I love duet narration though I know it’s more expensive and difficult for the actors. The simulation of conversations in a duet format brings the characters to life and interacting as if watching a play. All three performers were easy to listen to and brought emotions to the forefront. We heard how much Gale yearned and while knowing Harriet was super smart, we heard her anxiety in being matched with Gale from the AI program. The intimacy scenes were intense hearing the two voices together.
Definitely the choice of format if you love audiobooks. I did listen at 1.5 and slightly higher to be closer to my reading speed.

Smart women know how to handle their own desires. Harriet has created an innovative AI program and she’s going to prove it to the right company. Harriet also likes to be dominant in a relationship and Gale is all in. Harriet needs to realize she can have it all if she wants it.
Shivers and steam, confidence is just a couple steps ahead.

I received a copy of this from NetGalley and publisher HarperAudio Adult.
Profile Image for MillennialMomReading.
176 reviews197 followers
December 8, 2025
3.5⭐️: Grateful to Avon/Harper Voyager for this ARC since I loved book 1 (Puck and Prejudice). This was a super fast read with a lot in it to love, although it may have been a bit too easily resolved for my sake. I think the premise is super interesting: scientist develops an athlete improvement AI technology that she beta tests on her best friend’s brother (that she has crushed on through adulthood). The hockey in this is well written, although I’d like to have seen more regarding the AI’s recommendations for training. Considering the inspiration of Jane Austen’s Emma, the matchmaking function was cute but could have been more involved and a bigger part of the plot. This book absolutely checks the boxes for a satisfying, quick romance read, I think I just wish it had been longer!
Profile Image for cat.
168 reviews38 followers
November 26, 2025
The E.M.M.A. Effect is a funny, creative friends-to-lovers rom-com with a nerdy STEM twist.

Harriet Smythe is a computer scientist whose AI program, E.M.M.A., was supposed to build better athletes—not act as her personal matchmaker. But when she tests it on her best friend’s younger brother, NHL player Gale Knight, things get complicated… especially when the AI decides she’s his perfect match. 😝😝

The back-and-forth between Harriet and E.M.M.A. was absolutely hilarious and easily my favorite part of the book. The banter added so much personality and humor, breaking up the tension perfectly.

Gale completely won me over. His growth, realizing he wasn’t defined by his father and learning to trust himself gave the story real heart. I’ll be honest though, Harriet frustrated me soooo much. She kept pushing Gale away for no real reason and didn’t seem to grow much until the very end.

My biggest issue was the writing style. Harriet’s POV is in first person while Gale’s is in third, which made the switches feel confusing. To make it worse, the chapters weren’t labeled after the first few, so it was hard to tell whose head we were in at times. There were also a few inconsistencies during the more intimate scenes where the sequence of actions didn’t quite line up.

Still, this was a clever, heartfelt, and funny read that mixed tech, tension, and charm in unexpected ways. If you like smart banter, slow-burn chemistry, and a cat-dad hero who’s impossible not to root for, definitely give it a try.

-♡-♡-♡-♡-♡-favorite quotes-♡-♡-♡-♡-♡-

“Simple as he was, he knew this much: seeing her smile made everything make sense, even if he couldn't explain why.”



“In the warm glow of the bedside lamp, he looks like a mortal touched by divine favor.”



“Gale doesn't complete me—he shows me I already am complete, just waiting to spread my wings and soar.”



“Harriet, I love you so much that if I loved you less, I might be able to say more about it. The more I feel, the harder it becomes to put into words."


-♡-♡-♡-♡-♡-♡-♡-♡-♡-♡-♡-♡-♡-♡-♡-♡-

things to know about the book ↓

👩🏼‍💻 best friend’s brother
👩🏼‍💻 STEM romance
👩🏼‍💻 golden retriever/ black cat
👩🏼‍💻 he falls first
👩🏼‍💻 friends to lovers

A huge thank you to Netgalley, Avon and Harper Voyager, and Lia Riley for allowing me to read this arc. These are all my honest opinions in this review.
Profile Image for liz ౨ৎ.
159 reviews
May 19, 2025
Maybe I need to referesh myself on Jane Austen, maybe this books just sucks… I don’t see where Jane Austen comes into play other than the fact that Harriet’s AI model is named after one of her novels.

Unlike Ali Hazelwood’s STEM romances, this was incredibly boring. I just do not think it was executed well at all. It should not be marketed as Jane Austen meets Ali Hazelwood!

The point of view is another issue I had with the book. Harriet’s perspective is told through first-person, while Gale’s perspective is third-person. It makes no sense to me, and was honestly confusing to read. Additionally, the chapters stopped stating the POV after chapter 3 (I am aware that this most likely will be fixed prior to publishing).

I just did not enjoy this book. The E.M.M.A Effect did not pull me in (beyond the fact that it’s supposed to be Jane Austen inspired), and at no point while reading this book did I have a hard time putting it down.
Profile Image for Fife!.
144 reviews3 followers
January 9, 2026
DONT YOU DARE piss me off. I stand here. Shocked. Angry. Taken advantage of. This is not only a disgrace to one, but two beautiful communities. Not only did you slander the name of Jane Austen regency smut, you also slandered the holy name of hockey smut. I’m convinced the author never read Emma and simply could not understand anything Jane Austen has ever done. Like wym you turned EMMA my emma my favorite character in the entire world into a sports AI robot???? I’m sorry for what??? Then you have the complete indecency to make Harriet end up with your lamo fugly excuse for Mr. Knightley. Absolutely not. ALSO her best friends shit ass father dies and she doesn’t at all ask her best friend if she’s okay or reach out all the while standing on some crazy podium about how good of friends they are. ALSO insane I-love-you gate during sexy time when they weren’t even dating and it had been dare I say a month???? ALSO this girl is supposed to be a super genius with her doctorate and then she takes HIS LAST NAME - no. I’m seething. I’m angry.



However. I hate to say it. 2 stars instead of 1 because the smut was awesome. Like okay diva tie him up.
Profile Image for Cathy.
50 reviews1 follower
June 6, 2025
Thanks to the publisher for the ARC. All thoughts are my own.

This book had potential. A reverse age-gap, sports/tech romance with AI at the center? I was intrigued. Harriet, the FMC, works in tech developing an AI meant to enhance athlete performance and reduce injuries. Gale, the MMC, is a struggling NHL player with a complicated family legacy. They’re childhood friends, now adults navigating emotional wounds and shifting dynamics. Sounds good, right?

But reading it felt like I was constantly waiting for the real story to start. It’s fluffy, trope-heavy, and surface-level. And what frustrates me most is how much potential the core of this story had (if it had actually committed to emotional depth or meaningful accountability).

SPOILERS BELOW

Let me be blunt: Harriet is a poorly written character. Not just in the sense of “unlikable." She’s unoriginal, flat, and filled with every contrived trait that makes modern rom-com heroines feel manufactured. She’s insecure about her work, still hurt from a breakup, vaguely ambitious but not in a way that feels lived-in. She’s supposed to be this brilliant tech lead, but most of her actions are emotionally juvenile and narratively convenient. When she deliberately manipulates the AI’s logic to hide the fact that it matched her with Gale romantically, something that would compromise any real research project, it’s treated like a quirky mistake instead of the massive breach it is. And the ironic part is that she gets validated and supported by the same Tech bro boss that she has been lambasting the entire book. Well okay then.

She’s weak not because she has flaws (flawed women can be great characters), but because she’s written with no real weight. Everything she does, even when it’s objectively wrong, gets framed as brave or forgivable. She has no real arc. Her fears are shallow. Her growth is unearned. And the story bends over backward to protect her from meaningful consequence while still trying to crown her the emotional center of everything.

Meanwhile, Gale is actually written with care and nuance. He’s grieving his father, processing the trauma of being the son of a disgraced star athlete, and trying not to let his anxiety and legacy ruin his career. He has the emotional journey. He is the one dealing with real stakes. And yet, the story sidelines him repeatedly to keep the spotlight on Harriet, a character who doesn’t earn the reader’s trust, respect, or interest.

The ending just seals how shallow this story really is. Gale suddenly has a flawless game (which, good for him. He earned his professional happy ending with all grief he's experienced). Harriet gets an immediate yes from a glamorous French investor (who also happens to be the ex of her ex and now wants to mentor her in girlboss solidarity???), and even the AI itself gets a weird reflective summary chapter. The last chapter? A backyard wedding. Because... sure, why not?

Two more things that really didn’t work for me: First, the pov switching. The book uses first person for Harriet and third person for Gale, which is fine in theory, but the early chapters mark whose POV we're in... and then just stops. It becomes jarring, especially when the voices aren’t distinct enough to carry the change without clear labeling. As it is now, you have to actively read on until you see an "I" or "Gale" to know that this is Harriet's chapter or wait until you see "Harriet" (or something hockey related) to realize we're in Gale's chapter.

Second, this is marketed as a book “inspired by Jane Austen,” and that is just... not accurate. The only real link is the title Emma. The so-called “Duchess mode” of the AI, where it starts speaking in fake Regency language, isn’t clever or immersive. It’s extremely cringey. It reads like an American putting on a bad British accent and calling it Austen.

As I finished the book, I wasn’t even angry (yet), just filled with mild annoyance and disappointment. Harriet is written to be "flawed but perfect," never truly held accountable, and always conveniently uplifted. Brooke, her best friend, is reduced to a frazzled “new mom” stereotype who magically shows up when emotional support is needed. The women in this book are messy in a way that’s supposed to feel empowering, but really just feels self-congratulatory.

If this wasn’t an ARC, I probably would’ve DNF'd it and let it fade. Instead, I kept at it, hoping it would redeem itself. It didn’t. This is a 1-2 star read for me that at least, for now, is not driven by anger. Just a waste of potential.
Profile Image for Bel lvndrgms3.
682 reviews65 followers
December 9, 2025
3. 5 stars

Harriet’s a computer scientist who has invented an AI program, E.M.M.A. that helps athletes improve their athletic performance. She manages to get hockey star Gale Knight to agree to try the program that’s still in its development stages. Gale is her best friend’s younger brother, and he’s always held a candle for Harriet. E.M.M.A.’s analysis determines that the cure to Gale’s current struggles on the ice is to find the perfect match. Suddenly it turns into a dating app with its algorithms stating that it’s Harriet who would be perfect for him.

Gale and Harriet are great together and I liked the build up of tension. Both of them have backstories that haunt them, especially Gale who struggles to get out from under his father’s shadow. This experiment is the perfect time for Gale and Harriet to explore their feelings for each other, as complicated as they may be. Things get spicy!!!

It’s fun to see a smart woman like Harriet hold her own, and also be taken care of by a guy who sees her brilliance, isn’t intimidated by her genius, and who absolutely adores her. There’s a throw-a-fist-in-the-air triumphant moment when she allows herself to go for it with Gale. There are some triggering subplots which I’ll include at the end of this review. Riley treats those moments delicately and with empathy.

While this is part of an interconnected series (𝗣𝘂𝗰𝗸 𝗮𝗻𝗱 𝗣𝗿𝗲𝗷𝘂𝗱𝗶𝗰𝗲 being the first book), it can be read as a standalone. Check this out if you’re a fan of hockey romances and into Austen-inspired retellings!

Thanks to @avonbooks for my ARC in exchange for an honest review.
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⚠️ CW/TW: cancer, alcoholic father, grief
Profile Image for Lynn_G.
1,124 reviews27 followers
November 23, 2025
Very clever and cute romance about STEMinist AI software developer Harriet, and her BFF’s younger brother and hockey heartthrob Gale.

Harriet has developed an AI virtual coach for athletes called E.M.M.A. It’s almost ready to launch, and Gale happens to be in the worst slump of his professional career, so he’s the ideal test subject. The smarter than its own good E.M.M.A. however, has decided to play matchmaker, placing “her” virtual thumb on the scale for Harriet and Gale to connect in more ways than one.

Added to the mix is a group of rival developers set on sabotaging Harriet’s team, the looming legacy of Gale’s father who’s a disgraced hockey legend, bestie guilt, and kittens, making it a fun ride to a HEA.

I was fortunate to have received an advance reader copy from the author and NetGalley, and I’m pleased to share my honest review.
Profile Image for Becky (romantic_pursuing_feels).
1,289 reviews1,723 followers
December 17, 2025
Note: Some of my goodreads shelves can be spoilers

Overall: ⭐️⭐️⭐️
Readability: 📖📖📖
Feels: 🦋🦋🦋
Emotional Depth: 💔💔💔💔
Sexual Tension: ⚡⚡⚡
Romance: 💞💞💞
Sensuality: 💋💋💋💋
Sex Scene Length: 🍑🍑🍑🍑
Steam Scale (Number of Sex Scenes): 🔥 I have no idea if I counted this right. I only noted one scene but the last one I read by her had a lot more scenes so I’m probably wrong. Let me know!
Humor: Yes, a bit
Perspective: first person from heroine and third person from hero
More character focused or plot focused? character
How did the speed of the story feel? medium
When mains are first on page together: they talk on the phone very soon in, chapter 1
Cliffhanger: No this ends with a happily ever after
Epilogue: Yes
Format: voluntarily read an advanced reader copy from NetGalley in audiobook form
Why I chose this book: I LOVED book 1 of this series and wanted more
Mains: Gale Knight and Harriet Smythe – This is a M/F relationship between a cishet hero and heroine
(Descriptions found at end of my review)

Should I read in order?
This is book 2 of Riley’s Regals Hockey series and I think it’s really readable alone!

Basic plot:
Harriet is working on an AI program to assist athletes in reaching their full potential – who better for a guinea pig than her best friend’s hockey playing younger brother?

Give this a try if you want:
- contemporary romance
- Texas, US setting
- hockey player hero
- AI developer heroine
- size difference – she’s only 5’
- she’s older by 5 years
- best friend’s sibling
- FemDom
- Okay I am really unsure about the spice level – I have a note for 1 full scene and the last one I read by her was much hotter so maybe I missed some scenes in my notes??

Ages:
- hero is 25, I think heroine is 30?

First line:
Greek mythology was once my obsession.

My thoughts:
I was sadly so disappointed in this one! I loved the first book in this series so much and maybe my expectations were just really high!

Maybe it was hard for me to get into the whole AI plotline with how I already feel like I can’t escape it – so everything that was annoying about it felt doubly so with the real life annoyance.

I liked both mains okay but I just never really loved them. I wanted to care more...about the whole thing.

As for the narration, I really enjoyed the female voices! Looks like Brittany Pressley and Samantha Summers – very happy with those. Alexander Cendese though I will say wasn’t my favorite. I didn’t like his accents he added for different characters (like some sounded like 1920s gangsters to me) and just found him kind of grating overall which was sad and just purely personal preference!

Few random reading stats for this author
# of books read: 2
Average rating from me: 4 stars
Favorite book: Puck and Prejudice

Content warnings: These should be taken as a minimum of what to expect. It’s very possible I have missed some.


Locations of kisses/intimate scenes, safe sex aspects, consent, pregnancy/child in the story: The numbers don’t align with the chapter # title so I might have mislabeled some of these sorry)


Extra stuff like what my review breakdown means, where to find me, and book clubs
Profile Image for Jessica.
378 reviews36 followers
November 10, 2025
*Thank you to NetGalley and the publisher for providing me with an e-ARC in exchange for an honest review*

Review: A swoony, STEM rom-com that makes time fly!

“The E.M.M.A. Effect” follows Harriet Smythe, a computer scientist used to being in control, after her elite AI training program claims that her test subject Gale Knight, her best friend’s little brother and NHL forward for the Regals, is her perfect match.

The second installment in Riley’s Regals Hockey series is a fun, entertaining read that is loosely inspired by Jane Austen’s “Emma.” Like Austen’s female heroines, Harriet Smythe is independent, strong-willed, relatable, and not without her own flaws. It was empowering to see Harriet make strides and surpass obstacles in a male-dominated industry all while finding love.

Gale is Harriet’s perfect match despite her initially denying it. Their development from friends to lovers and the chemistry between them is extremely satisfying! I love how Gale was genuinely interested and supportive of Harriet and her work from the very beginning. He undergoes massive growth and improves his self-image with help from Harriet. The more time the two spend together finding ways to optimize Gale’s hockey performance, the more comfortable they step into their true selves. While the spice is definitely a highlight, I also appreciated the raw, emotional moments Harriet and Gale shared.

➤ 4 stars

Review cross-posted to:
Book Blog | Bookstagram | Amazon
Profile Image for ✨Jessica✨.
328 reviews26 followers
December 21, 2025
⭐️⭐️⭐️
1.5🌶️

The EMMA Effect features Harriet who created and AI system to help athletes. Gale is a hockey player and the younger brother of Harriet’s best friend. When the system she created suggests that her and Gale are a perfect match, Harriet panics.

This book was OK for me. The FMC is 30 and the MMC is 25. However, I felt the whole story read more like a new adult book. The characters definitely seemed younger.

Another thing I found odd in this story is that the FMCs POV was in first person while when you got to the MMC chapters, everything was in third person. I didn’t love this format.

Overall, a cute story.

Thank you to Avon for the gifted copy. All opinions are my own.
Profile Image for Zenya  Weatherall.
22 reviews
November 25, 2025
7% into this book and I started telling all my girls about this book! It was exactly what I needed. I absolutely love strong, independent, intelligent women who know what they want and get it. Harriet is a badass! And I love that Gail was not afraid to let her take control. He was down bad for her and it made me swoon. This book is exactly the type of book I love to read! Lia Riley will now be an instant buy for me! Her writing is so smart, witty, and swoony!

#TheEmmaEffect #NetGalley
Profile Image for Maxine.
372 reviews18 followers
November 30, 2025
This is the first book I have read by this author, and it was a fun time. I loved the MMC Gale and how GAGA he was over the FMC Harriett. Not just because he is a golden retriever but also bc he looooves how smart she is and even he couldn't understand what she sometimes was talking about he just loved to listen to her talk and see how amazing her brain is. It makes me want to explore more like that because a lot of the time in these smart/jock matchups it kinda gives the feel that he loved her even if or in spite of her being so smart and nerdy, but this MMC just loved how smart she was.

I will say with this that cover led me think this was just a cute rom com but I was surprised by the spice in it. With Harriett being the one to take charge and Gale once again loving it. It was a pleasant surprise.

With Harriett I loved how smart and driven she was as well as unapologetic about herself despite being in a male dominated field as well as a loser on again off again BF. She never tried to diminish herself and I loved how that wasn't a factor in why she thought they wouldn't work but more that they are just two very different people as well as not only are they friends, but he is the little brother to her best friend. So those reasons made sense without trying to diminish her and I loved it.

Overall, this was a cute romcom that surprised me with the spice, and the plot was relevant with the AI tech elements that this made for an enjoyable inspired by Jane Austin's Emma story. It makes me curious about other writings by the author. Also, while there are some conflict and drama especially family drama this book didn't feel high stakes so if you're looking for something more chill and cuter this def worth looking into.

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This book is about Harriet who is trying to develop an AI program to help athletes increase their performance. When there start to become issues with confidence and funding in the project Harriet has no other options than to turn to her best friend's little brother Gale a well-known hockey player that is going through a rough patch. She hopes that enlisting his as a test subject will not only help him through this rough patch but to also prove the efficacy of the program. The only issue is that she has been secretly crushing on him for years and his smirk has a way of short-circuiting her brain. But with his career and her project on the line she is determined to keep things professional and on track. So, when her AI program E.M.M.A. determines the issue with Gale's performance is his lack of an emotional connection to someone in other words his performance would improve if he was in a relationship and the program determined the best match for him is none other than Harriet. While Harriet agrees with the program that Gale could use a GF, she disagrees that she is the perfect match so has the program come up with alternatives that result in matches with a popstar and another athlete. But while Gale dutifully goes on these awkward dates that don't go anywhere things are heating up between the two of them. Which means Harriet will have to make a choice in trusting in pure logic or admit that sometimes you just have to let go and give up control. Even if it's to an AI program with a sassy attitude that might see something that they refuse to.



I received an ARC Copy in exchange for an honest review.
Profile Image for Jessica.
113 reviews3 followers
December 4, 2025
I was very excited to receive an ARC copy of this book, especially since I had received one for the first book of the series and found that to be a fun read. This book, unfortunately, fell flat for me.

First and foremost, I struggled with the marketing. Ali Hazelwood meets Jane Austin is the last thought I would have about this book. It lacks the sophistication of Austin and the knowledge of Hazelwood. This coupled with the disconnect from the first book of the series left me wondering why this wasn’t a stand alone book left without a buzzword type summary.

Additionally, I found the characters to lack any depth, alone or with one another. The FMC had too many contradictory personalities to seem real. The MMC was so stuck in his head he failed to have any growth as a character. In particular, after his father dies, he has the opportunity for character development which simply doesn’t happen.

The two main characters also fail to have any chemistry with each other. They seem like strangers for the majority of the book, which left me unable to believe that they have any feelings for each other, and certainly not love.

Finally, I really struggled with E.M.M.A.’s dialogue. I understand the purpose, but I found it disruptive to the story itself.

Overall, it was enough to entertain me, but not compelling enough to recommend.

Thank you to Avon and Harper Voyage, and NetGalley for the ARC copy of this book.
Profile Image for Samhl .
128 reviews2 followers
December 12, 2025
Billed as “Jane Austen meets Ali Hazelwood,” this book suffers from the comparison to both. Outside of character names and the vague idea of matchmaking it bears no resemblance to Austen’s masterpiece, and the characters aren’t nearly as entertaining as Hazelwood’s.

Harriet is best friends with Gale’s sister. She is also a PhD working on an AI that will help athletes improve their performance. He just happens to be an NHL player who’s having a rough season. Seeing each other as adults more regularly, sparks fly. Good set up. I just wish the execution worked for me.

First, I’ll say I don’t love age gap romances. And while I don’t consider a five year age gap to be significant, the fact that these two characters grew up together, and one was lusting after the other when she was an adult and he was still a minor makes this a little disconcerting for me. While Harriet does say she wasn’t interested in him until he was 18, I don’t believe her. I wish the timeline had been pushed forward a few years. I could gloss over all this if the characters had any chemistry together. Sadly, they don’t.


Secondly, as an audiobook listener, I found the jumps between first person POV (her) to third person POV (him) very jarring. Moreover, the male narrator sounds like he’s narrating a childrens’ book with the boisterousness of a golden retriever, and not a spicy novel.

I’m DNFed this book at 64%. I simply didn’t find myself wanting to hit play again.

Thank you to HarperAudio Adult, and NetGalley for providing the audiobook to me and exchange for an honest opinion.
Profile Image for SJ.
202 reviews4 followers
May 4, 2025
Set in Austin, Texas, Harriet Smythe is a computer scientist that needs a pro-athlete to beta test The E.M.M.A., her AI testing program for elite athletes. Her best friend's younger brother and NHL forward Gale Knight fits the bill. Gale has been struggling recently and could use help with his performance. But when The E.M.M.A suggests the best solution is a romantic relationship with her, Harriet's long crush comes back into play. As she tries to set Gale up with someone else, they find their chemistry more and more difficult to resist.

This is the second in a hockey + Austen rom com series from Lia Riley. I really enjoyed the first and found this one to be even better. It was super quick and fun to read. I definitely see the Ali Hazelwood comparisons (and will through in Susannah Nix's Chemistry Lessons series). I liked seeing her and Gale in each of their elements and how they loved to see the other one succeed.

Read this for:
🏒 PhD x Pro Hockey Player
💻 Sibling's best friend
🏒 Age gap (she's five years older)
💻 Austen references (loved the various nods to Emma without being overwhelming)
🏒 Grief and forgiveness

Open door / spicy!

4.75 / 5 stars

Many thanks to the author, publisher, and Netgalley for this eARC!
Profile Image for delusioanal | emma.
98 reviews1 follower
July 19, 2025
Harriet is a computer scientist in the process of making a AI model that would help athletes become better at their sport. Her best friend’s brother just so happens to be a pro athlete who’s currently not performing so well. His name is Gale, the perfect test subject and also the man she’s had a crush on for years. As they try to work together, they find comfort in each other and find it hard to resist the inevitable.

This was cute and interesting enough to keep me going till the end. But something’s fell flat for me. I was really intrigued by their relationship dynamic. The fact that she was older and liked to take charge in the bedroom while he was wanting someone like that. But then we didn’t really get to explore that more than once.

I didn’t really care for the AI aspect. Especially how the AI overrode its own abilities to play matchmaker. And she made no effort to fix it. Also, the fact that the solution to all his problems was getting some kitty cat was kinda crazy to me.

I received an advance review copy for free, and I am leaving this review voluntarily.
Profile Image for High Lady of Delulu.
513 reviews32 followers
December 2, 2025
The E.M.M.A Effect was exactly the light hearted, this side of cheesy romance that I had hoped for. Entertaining if surface level - a quick and enjoyable read.


PLOT
I have seen that other readers were disappointed because of the comparison to Ali Hazelwood. Now, Ive only read Bride so I can’t say anything on the women-in-STEM comparison.
That aside, the level of science and professionalism was, truth be told, not as in depth as it could have been. Personally, I didn’t mind though.
Admittedly, the plot that drove the romance felt a bit fabricated in a way that gave me lowkey Hallmark movie vibes. Going in expecting nothing but a lighthearted, possibly cheesy romance, I was ok with that.

The thing I, for one, did happen to take issue with was when the plot was furthered by decisions that didn’t seem to align with the characters. Those moments did indeed feel a bit too forced for my personal taste. I think, for the FMC’s emotional baggage to cause her to make the decisions she does, I’d either have needed more depth to said baggage or additional reasons.


CHARACTERS
Overall, the characters might have profited from a bit more depth in general. I was missing some nuances that would have made them feel more rounded. Again, nothing I minded too much while reading. Both characters delivered exactly what they were supposed to and were lovable enough to be invested. And it sure worked for the tone and vibe of the book.


WRITING
The writing style worked well for me and, in my opinion, matched the story. I particularly enjoyed the narration - Alexander Cendese is a favourite of mine and he did a great job as always. So did Brittany Pressley & Samantha Summers, for that matter.

---

Thank you to NetGalley, HarperAudio Adult and the author for an ALC of this book
Profile Image for callistoscalling.
980 reviews27 followers
December 3, 2025
Thank you to the publisher for a gifted copy; all thoughts are my own.

📖 Book Review 📖 Sometimes the very things we create to make our lives easier bring a whole new level of unexpected complications that can throw off the balance of even the most perfect equation. Harriet has used her brains and skills to create a device to promote athletes to their fullest potential. But when the E.M.M.A. Effect draws her into close proximity with her best friend’s younger brother, boundaries might just be pushed to the limit. Lia Riley serves us a STEM/hockey hybrid romance that brings a slow burn. The E.M.M.A. Effect has Harriet and Gale as a perfect match. It’s scary how well artificial intelligence tracks your daily moves down to the advertisements you see and this book will have you wondering about the accuracy of matchmaking. But Riley adds the perfect amount of chemistry in this one to have you rooting for this robot to be right.

Profile Image for Madeline Gautreaux.
87 reviews4 followers
April 22, 2025
First off, thank you to Avon & HarperVoyage for access to the ARC of this novel!

Don’t let the cover decieve you; this book has some incredibly steamy moments and a hell of a story about self exploration. I started this one a bit apprehensive given my distane for AI and it’s use in the world. For anyone who feels the same way, there is an easy way to avoid that part- though it does have a small point in the plot- by just skimming chapters where it exists.

AI aside, GAHHH! These characters go through individual hell and yet somehow make it back to one another, and to themselves become stronger. I appreciated the way hockey, badass women in male-dominated fields, and self discovery were intertwined EFFORTLESSLY throughout. Truly don’t know if I’ve ever seen it done in the way that Lia Riley did it here

Towards the end (i’d say the last 3 chapters), I felt like it was just repetitive and it coulf have easily ended after Chapter 21 or 22. Though that’s the case, I appreciated Riley’s attention to detail in finishing out each of the plotlines to the end.

I also understood E.M.M.A. (The AI) perspective in Chapter 26, but I could have done without it- it felt redundant compared to the storyline and what we learn from the characters.

All in all, I thoroughly enjoyed this book, the characters, and the outcomes. If you pick this up, have fun with it but also be aware of your own biases and feelings about AI because I could see where that could take away from your experience in reading it (just as it happened to me).

(p.s. if you love Ali Hazelwood this book WILL be of interest for you. It’s the perfect blend of science & sports. No notes.)
Profile Image for Laura Peterson.
581 reviews19 followers
September 1, 2025
The Emma Effect is one of those romances that sneaks up on you with heart as much as with heat. At first glance, it’s got all the hallmarks of a fun, contemporary rom-com: a quirky premise involving AI technology, a hockey player in a slump, and a second-chance sort of dynamic rooted in childhood connections. But as the story unfolds, Lia Riley layers in family drama, resilience, and vulnerability that give this book more depth than you might expect.

I was very surprised by how much I enjoyed this book, as romcoms are not my go-to genre. I cannot wait to pick up more books from this author!
Profile Image for Isabel Jarnow.
242 reviews
November 30, 2025
Thank you to Netgalley for the ARC!

Gale is a struggling hockey player, and his sister is Harriet's best friend. Harriet has created an AI device that helps with athlete's performance.

I enjoyed the romance and relationships in this, and the mental health/grief rep. The AI aspect of this took over a little too much for me, and I don't understand the marketing of it being a Jane Austen retelling.

Tropes:
reverse age gap
best friends brother
friends to lovers
grief rep
Profile Image for Madison Brown.
475 reviews12 followers
December 13, 2025
ARC REVIEW: This story was absolutely adorable and is a perfect STEM/Sports Romance! Quirky, flirty, and all around nerdy, this book had me smiling and laughing!

Expect: STEM AI, friends to lovers, best friend's little brother, hockey player, smart girl, sports romance
Profile Image for Jennifer Wycech.
1,015 reviews26 followers
November 23, 2025
Best friends brother
FMC 1st person POV
MMC 3rd person POV
Hockey romance

Duet Narration - Alexander Cendese & Brittany Pressley & Samantha Summers

The voices were great I liked the performance.

I thought I was going to really enjoy this one. And I did like some of it. I had a hard time with the switching of 1st person pov to 3rd person pov.
I typically do not like 3rd person pov books.

The story was good and I liked the characters. Overall I’d say if the changing in pov doesn’t both you then definitely give this one a listen. It’s a good story.
Profile Image for Laura • lauralovestoread.
1,699 reviews290 followers
January 4, 2026
I loved the nod to Jane Austen in this steamy friends to lovers story. It follows Harriet at the center of the story and I loved the banter!

*many thanks to Avon Books, Harper audio and Netgalley for the gifted copy for review
Profile Image for Mamawattto4 Melissa.
282 reviews15 followers
November 26, 2025
Thank you NetGalley and Avon for the ARC

2 ⭐️ ⭐️

I went into this book really wanting to enjoy it, but unfortunately, it just didn’t work for me. The premise had potential, but the execution fell flat. I found the pacing uneven and struggled to stay invested in the storyline. The characters also felt underdeveloped, which made it difficult to connect with them or care about their journeys.
While I can appreciate the effort put into creating something different, overall this wasn’t a story that kept my attention or delivered what I was hoping for.

Audiobook review 🎧

Thank you NetGalley and Harper Audio and NetGalley for the audio ARC

I originally read E.M.M.A. Effect on my kindle and didn’t enjoy the story, so I decided to try the audiobook to see if the experience improved. While the plot still didn’t work for me, I will say the narration was the highlight this time around. Both the female and male narrators did a really solid job bringing emotion, personality, and energy to the characters. Their performances made the story much more engaging than it was on the page.

Unfortunately, even with great narrators, the story itself still wasn’t for me, and that held my overall rating at 2 stars. But if someone is set on reading this book, I’d definitely recommend the audio format over the physical copy for a better experience.
Profile Image for Kali Coates.
66 reviews
May 18, 2025
2.5⭐️
The E.M.M.A. Effect was a fun nod to Jane Austen’s Emma that didn’t quite hit the mark for me. It almost had too many things going. The mythology, hockey, a.i. matchmaking, best friend’s brother trope and the Austen storyline it was trying to mash in there was all too much. I know these were two characters that had history but it read very insta-love since none of the relationship building really happened on the page. Also, the switching from first person POV in Harriet’s chapters to third person POV in Gales’ seemed like a weird choice.

Overall, I feel similarly about this book that I did about Lia Riley’s Puck and Prejudice and that’s that it was written for a certain audience and that audience just isn’t me. I probably won’t pick up another one of her books.

Thanks NetGalley, the publisher, and the author for an advanced copy of this book!

*I received a complimentary copy of this book. Opinions expressed in this review are completely my own.*
Profile Image for Liberty.
841 reviews23 followers
November 8, 2025
Before I get into the review, a quick thank you to both NetGalley and the publishers over at Avon for allowing me access to this ARC in exchange for an honest review. The E.M.M.A Effect is a take on the Jane Austen classic with a scientific and slightly speculative slant. Harriet is an AI programmer working on a system to help athletes become better. Gale is her best friend's brother and hockey star who has hit a bit of a snag. He agrees to help with her Beta testing hoping that it will improve his game and get him out of his rough patch. But when E.M.M.A. goes outside of her programming and suggests that what Gale needs is to date Harriet to get his game back in form, she knows she can't follow E.M.M.A.'s suggestion. Determined to remain professional, Harriet has E.M.M.A. find other suitable matches for Gale and watches his dating attempts from the sidelines. The E.M.M.A. Effect comes out on December 2nd is available for preorder now.

I only have a vague knowledge of Emma by Jane Austen and even then, what I do know comes from a YouTube short form fictional show so anything relating to the original work is probably beyond my scope. At least a little. I found a couple of the subplots intriguing while the main plot beats never really got my attention. The storyline with Gale and his dad being placed in hospice and knowing his dad is going to die soon really tore me up on the inside. My mother was placed in hospice back in late February of this year before she passed so my grief and my pain were really reflected back to me in this one. Even this weird idea that Gale had because of his bad relationship with his father about how his father will never have the chance to grow and become a better man. It hit me in the feels for sure. Something I never understood until this year is that when you lose someone you don't just lose this person that you love, but that you also lose so many possible future moments with them and it shuts this door that can never be reopened. It was heartbreaking to see Gale also have this realization. The storyline with the cat that decides one day that Gale's back porch is the perfect place to have her kittens was super cute. I loved seeing his goofiness while trying to figure out being a cat dad and playing hockey and trying to get his game back while also going on these random dates. I think Gale is probably the best part of this book.

What I didn't like. Yikes. I have to say that the author chose a certain...mindset...in the bedroom that our couple enjoys that is not up my alley. All of the sex scenes are super cringe for me and give me the ick. I know that there will be people out there who enjoy that aspect of this book. I know it does flip some Romance sex scene dynamics on their heads and there is an audience for that for sure. It's not me, but I know there's an audience for this. The other thing that I want to draw attention to is the lack of emotional impact. Aside from the parent death, which has its own reason for hitting me in the chest, I never felt emotionally invested. I didn't really care if Gale and Harriet got together. I never felt their emotions when they were hurt by the other. I never felt their emotions when they were elated by the other. It just never got that deep for me. I think there's a few reasons for this: 1) we don't take the time to truly get invested in the characters before they become romantically involved, 2) we don't really see a split which is what felt needed to get some sort of emotion going, and 3) we're so dialed into the A.I. of it all that it felt like we were sacrificing the things that make a Romance a Romance.

Overall, I think this is a fun and quick read that would be good for people looking to see their Romance novels shake things up a bit. Also, for anyone interested in A.I. in fiction and seeing how maybe it develops a mind of its own.
Profile Image for Katie.
90 reviews1 follower
December 28, 2025
2.5 stars

I've never read Jane Austen, so maybe this wasn't meant for me. But this was very underwhelming.

I don't even know where to start.

The premise was intriguing; I'll give it that. AI is a hot button item, and sports romances are having their moment right now. It just fell flat on both of those accounts. This was very sport light. So much jargon was used, I thought I was listening to a bunch of hockey obsessed 11-year-olds. I can't imagine a full grown adult, with a fully developed front lobe would name their cats after hockey slang? Maybe, I dunno. The AI is a little *too* hot right now. With AI stealing authors' and artists' original works, I think it's too touchy of a subject to touch. There were also a lot of weird trendy pop culture moments. Was Harriett setting him up with Sabrina Carpenter or Tate McRae?

Also, what kind of awful friend is Harriett that she just lets her best friend since childhood, Brooke, struggle with being a mother so hard? Brooke is so down deep into motherhood with a newborn that she can't shower, wash her hair, think critically, clean her house, etc. But she can see her friend and brother falling in love? OKAY. Full on disservice parodying first time motherhood for Brooke. Harriett, bring her food, clean her house, and then leave. Don't just drop food and run.

A ton of continuity issues. Harriett asks how long the corn bread will take, Gale says something to the effect of, "In a cast iron skillet? 20 minutes" and then FIVE MINUTES LATER they were on the couch eating chili and cornbread. Gale says "Yes Ma'am" at least twice in the book and then when they start getting involved, he says it again and they completely ignore the earlier use and say he's never said it before. What? Did I have short term memory gain? He just said it? The AI kept being pitched as this tool that will analyze players movements and help improve their function, help with fitness regimes, nutrition, etc. But for their beta tester, that they will be relying on to PITCH THIS TO INVESTERS, it's recommending a love match?? Whhaaaat? Is this Disney Channel's Smart House...?

That meeting with Tony and the Chads? That's where I nearly threw my Kindle across the room. I wanted to DNF but I rage read from then on, I wanted the book over. At no point would any other peer group be that involved in a meeting, DEMAND they call the client in front of them, and tell them. There are so many liability issues of DATING ONE'S CLIENT that the override made complete sense. It was either remove Harriett from the trial and continue on or override the system. This was a contemporary setting romance, it needs to have real life HR rules. Chads being in that meeting made no sense and held entirely too much power. I can't believe I got enraged over fake corporate B.S.

The love declaration made no sense. They hung out like 3 times? They weren't besties as children and he was entirely too young to know like that when they did hang out near each other.

I could keep going. This book made me very frustrated. Lia Riley can obviously write well. But I think the publisher absolutely failed her in developmental edits and guidance. Maybe this ARC was pushed in the early aughts of writing, but it didn't land well for me.

I would read Lia Riley again in the future, but this was a complete miss for me.
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