Jump to ratings and reviews
Rate this book

Hidden Legacy #6.5

Beast Business

Rate this book
Augustine Montgomery is an Illusion Prime who owns a premier PI corporation and alters his appearance with magic. The people who have seen Augustine’s real face can be counted on the fingers of one hand. The people who witnessed the full extent of his power are dead. The illusion isn’t just the brand of his magic. It’s become his lifestyle.

Show as little as possible. Make them think that illusion is all you have. Your life depends on it.

Augustine lives by this creed. He’s cold, rational, and calculating. He doesn’t get emotionally involved. Then one day Diana Harrison walks into his office and asks for his help. Diana is a Prime, an animal mage who bonds with animals through her magic and prefers their company to humans. Something precious has been stolen from House Harrison. Something Diana must recover at all costs.

The two Houses are allied through a friendship pact. Assisting Diana is simply good business. And yet, there is something about her that disturbs the careful balance of Augustine’s inner world.

Neither of them is who they appear to be. Both would die to keep their secrets. But the enemy they face is more powerful than either had imagined, and saving the life that hangs in the balance will demand the ultimate price neither Augustine nor Diana ever anticipated to pay – complete honesty.

205 pages, ebook

First published January 29, 2026

1719 people are currently reading
1255 people want to read

About the author

Ilona Andrews

148 books33.7k followers
Ilona Andrews is the pseudonym for a husband-and-wife writing team. Ilona is a native-born Russian and Gordon is a former communications sergeant in the U.S. Army. Contrary to popular belief, Gordon was never an intelligence officer with a license to kill, and Ilona was never the mysterious Russian spy who seduced him. They met in college, in English Composition 101, where Ilona got a better grade. (Gordon is still sore about that.)

Gordon and Ilona currently reside in Oregon with their two children, three dogs and a cat. They have co-authored two series, the bestselling urban fantasy of Kate Daniels and romantic urban fantasy of The Edge.

Ratings & Reviews

What do you think?
Rate this book

Friends & Following

Create a free account to discover what your friends think of this book!

Community Reviews

5 stars
2,725 (62%)
4 stars
1,274 (29%)
3 stars
342 (7%)
2 stars
26 (<1%)
1 star
8 (<1%)
Displaying 1 - 30 of 542 reviews
Profile Image for Corina.
878 reviews2,576 followers
January 30, 2026
No way this story ends here—I need more Augustine!!

Diana and Augustine together were perfection: her as the animal mage, him cool, controlled, and lethal. Honestly? Both were deadly ♡

This novella was extremely entertaining, as always, and delivered in every way. I loved seeing Arabella as part of the story and where her path might lead. She needs a little more time before carrying her own books, but I can already see it coming—and I’ll be first in line.
Profile Image for Mallory.
1,952 reviews299 followers
February 1, 2026
This novella was almost cruel in that it was so short and I want so much more of the characters. The story is well written and I know it took a lot of work and I do appreciate it so much, but I want more and always will. Augustine has more to say and so does Diana. I cannot wait to learn more about the animal magic too. Someone stole something from House Harrison and Diana goes to Augustine for help. But as they work together the sparks between them cannot help but fly.
Profile Image for Anna [Bran. San. Stan].
462 reviews305 followers
February 22, 2026
Diana and Augustine’s novella
A very enjoyable, short novella where Diana, Head of House Harrison, and Augustine, Head of House Montgomery, team up to rescue a gorgeous “kitten” (more like an arcane version of a blue tiger). What I enjoyed most was diving more into the abilities of animal and illusion mages, Diana and Augustine respectively. Turns out there is a lot more to it than illusions and bonds to animals. We also finally find out what Augustine really looks like behind his illusion – not that different after all, but with a scar. Another handsome man.

Arabella’s short story
This is a gift for everyone who has been asking for an Arabella novel. It’s only a glimpse, but it was a great glimpse at her and her character. Now I want that novel (or better yet: a trilogy) all the more.

Other shorts
I had already read “A Misunderstanding” and “A Cool Aunt” on Ilona’s website so I didn’t reread them.
“Marty” was a cute story in Matilda’s point of view. (Young daughter of Cornelius Harrison, Diana’s brother.) What can I say? I really want to be an animal mage.
“Inn Talks” are fun little interviews conducted by Dina (from the Innkeeper Chronicles) and George (from The Edge and Innkeeper), one with Arabella, the other with Augustine. If I remember correctly, both were part of the Andrews’ newsletters.
Profile Image for Wanda Pedersen.
2,340 reviews377 followers
February 7, 2026
Book 4 of the 2026 Read Your Hoard Challenge

I was delighted when this book was delivered today and I dropped everything in order to read it. I'll probably read it again before I go back to business as usual.

The Book Devouring Horde loves Augustine Montgomery and has been waiting p*tiently for this novella. It was great fun to learn more about illusion mages like Augustine and animal mages like Diana Harrison. Both magic branches are secretive about their abilities, so Augustine and Diana try to give answers that don't reveal too much. Readers, however, are privy to their thoughts.

We also get a glimpse of the relationship between Augustine and Arabella Baylor. Augustine and Nevada Baylor have swapped siblings to provide internship experience. At the end of the book, House Andrews has included the short fiction about Arabella previously published on their blog. Which is nice, but more importantly, they have also written a short piece that intersects with the primary novella. They know what we like.

Now, I must confess, I thought this novella would be a one and done affair. After all, the Andrews have so many series underway and their Horde is always ready to Devour more. At the end there is enough unfinished business to justify another volume. Of course I will be delighted to read it if or when they care to write it. I am nothing if not chalant.
Profile Image for Jordyn Lucas.
59 reviews14 followers
January 30, 2026
I really enjoyed this book and the actual story itself was excellent. As always, Ilona Andrews’ writing continues to be sharp, engaging, and easy to sink into. I loved getting more time with Diana, and a deeper dive on Augustine and his magic. Even though Diana wasn’t a new character to the series, she felt fresh here, and I genuinely enjoyed getting to know her more deeply.

That said, my biggest issue with this book is simply that it was too short. The ending felt abrupt and incomplete, and I finished it wanting significantly more time with these characters. The Diana and Augustine storyline had so much potential, and I couldn’t help feeling disappointed that we didn’t get to see it explored further.

I was also a bit confused by the inclusion of the blog stories in the book. I understand why it’s nice to have them preserved in print, but structurally they felt out of place. Personally, I would have preferred that space be used to expand the main narrative instead …especially given how quickly the core story wrapped up.

All that said, I still really enjoyed this book. The writing was strong, the characters were compelling, and the story itself was genuinely fun to read. I love this universe and this series, and I’ll happily take any spinoff content I can get. I just wish there had been more of it.

If you’re already a fan of the series, this is absolutely worth reading ….just be prepared to want more when it ends.
Profile Image for Heather K (dentist in my spare time).
4,115 reviews6,845 followers
March 2, 2026
Ilona Andrews is an autobuy for me, and is one of the very few authors that I will pay full price for on release day. However, Beast Business wasn't exactly what I was expecting.

The novella with Augustine is actually only a little more than half the book, and it felt rushed. I wanted way more relationship development. However, I'll never be mad at an illusion prime showing his magic and seeing him be more vulnerable was really all I needed to be satisfied.

The rest of the book was short stories with the rest of the characters, and I adored those. It made me so incredibly hungry for more Hidden Legacy content that I immediately started a re-read of the entire series. So take that for what it's worth.

Beast Business is worth buying but just make sure you know exactly what you are getting.

goodreads|instagram
Profile Image for Trish.
2,405 reviews3,758 followers
February 10, 2026
It's been a while since we have been in this alternate version of Houston, Texas, but I'm happy to report that the authors've still got it and coming back was like coming home - even if it was just for a very short while.

Augustine Montgomery (the shapeshifter who used to own Baylor Investigations) and Diana Harrison (sister of Cornelius who can talk to animals) are the MCs in this one.
As some might recall, Cornelius bonded with a creature that was summoned from another realm: Zeus.
As it turns out, there has been another creature from the same realm that Cornelius and his sister saved: Celeste.
No, the names are not a coincidence; yes, the joke about that was really very funny; and yes, the two mated and had a little adorable - most improtantly though HILARIOUS cub: Kitty.
What any of this "beast business" has to do with the biggest and most successful PI firm in Houston and why the boss (Augustine) is taking the case himself, I shall not spoiler. ;P

Let's just say that sparks flew in a very low-key (at the beginning) way and I kinda liked it!

As far as I know, the original plan for this series was for each Baylor sister to have her own trilogy. Well, we had Nevada's (awesome) and we had Catalina's (very good but not quite as awesome IMO) - but not Arabella's. I'm pretty sure this and the little teasers (you can't even call them short stories) we had thus far are preparing us for just that.

The writing was once again funny and fast-paced with the occasional cuteness (Matilda) thrown into the mix, the worldbuilding as wonderfully life-like and intricate as before, and the characters are old friends (and enemies) by now. So like I said: it's like coming home. Hopefully, we won't have to wait too long for Arabella's first novel to drop.
Profile Image for TJ.
3,319 reviews293 followers
February 1, 2026
LOVED getting back into the Hidden Legacy world! I have always been intrigued by Alexander Montgomery, and Diana Harrison, while a very minor character in the overall series, left an impression on every page she landed on. So, getting a story focusing on these two very enigmatic characters is awesome! Just a note of warning, however. Sadly, the story ends at the 61% mark and wasn’t completely resolved. Hopefully that means more to come?

The rest of the book consists of snippets focusing on Arabella Baylor, the youngest of the Baylor family. Now SHE is a favorite of mine and I hope, hope, HOPE, we get to see her own trilogy soon!
Profile Image for Robin (Bridge Four).
1,972 reviews1,663 followers
February 14, 2026
4.5 More than just a pretty face Stars

Augustine has been a favorite side character of mine since we learned he wasn’t just a man that could put on a pretty face. As Rogan’s best friend from college I knew that there had to be a little more to his backstory and Beast Business is a great set up to flesh out Augustine as a leading character and give the reader some details of his past.
“You’re a monster,” she murmured. He blinked, sure he’d misheard. She’d said it like a compliment.

Diana Harrison wasn’t someone I really thought of in the other books. She was Cornelius’s estranged sister and that was about it. Getting to spend some page time with her was eye opening not only to Cornelius’s childhood but also to some of the other concepts of an animal mages magic. I really enjoyed the moments that we got to explore with both characters.

This was such a great set up for a full-length story with them. There is great chemistry between them and while probably not magically compatible it seems that they are really going to be meant for each other in some way we only got glimpses of here. Teamed up Augustine and Diana could definitely compete with some of the other power couples we have already read about. I look forward to possibly meeting some of Augustine’s family and see how the romance between them is going to happen. It is pretty inevitable.

Shorts after the main story.

Some of these I had read and others were new to me. I appreciate that the Andrews had them compiled after the main story.

Arabella is such a fun character. She is the wild one, the one most likely to set loose and getting some glimpses of her magic and how she is learning to harness just adds to the depth of her character. She might play flighty but she is really very smart and knows exactly how to press everyone’s buttons. I love that she has decided that she wants Augustine to be her mentor and is working on way to convince him that he wants to mentor her.
First, I need him to write me a letter of recommendation for Rice, because I know that’s the only way I can get in. But it’s more than that. That dude is a fucking shark. He knows everything about everyone. He’s like a surgeon when it comes to House politics. He is in. I want him to teach me how to be like him.

I liked her POV and seeing how she decided to make friends with someone you wouldn’t normally think she would try to befriend based of the house she was in. But after they talked it made perfect sense. I could see how they both had quite a bit in common. I look forward to seeing what kind of trouble they are going to get in together.

MATILDA!!! I love that kid. She is such a great character and her page time is full of cuteness. She is adored by the Baylor family and see how sisterly she and Arabella are was fun. I laughed that she has taken to spying on the people she cares about. She is going to be a great addition to the PI firm when she gets older.
Matilda opened her eyes wide. “May I also come? I will stay out of the way. I will be useful.”
“Are you trying to look cute and pitiful to manipulate me?”
“Yes.”
“Good girl. You can also come.”

I’m a sucker for anything written by Ilona Andrews and this novella with the blog shorts was just the icing on the cake.
Profile Image for Kate McMurry.
Author 1 book131 followers
February 2, 2026
A fabulous novella plus multiple, wonderful Arabella vignettes

This book is a marvelous gift for fans of Ilona Andrews in general and the Hidden Legacy urban fantasy series in specific. The main novella, Beast Business, offers a terrific romance between two highly sympathetic MCs. They are equally magically powerful and make a dynamic team as they pursue an enormously powerful, evil villain, who has kidnapped an adorable, alien baby kitty.

As an additional treat, there are multiple Arabella vignettes gathered together in one place which first appeared as separate free offerings on the authors' website.

In short, this book was phenomenal all the way through. I will snap up the audiobook the minute it's released, and I eagerly anticipate the eventual GraphicAudio full-cast production as well.
Profile Image for bibliophile .
511 reviews
February 22, 2026
Disappointing. I’ve waited for Augustine’s book for years & we got a rushed instalove half baked novella that seems written to shut up long term readers & a cash grab. This is now the 6th unfinished story series they have started & when the authors get called out on it they get an attitude & lash out at readers says their 7 figure deal is a priority & this is all they can manage. They used to write so much better than what they’ve been releasing & as someone who has been reading & supporting them for 15 years it is frustrating & disappointing.
Profile Image for Mel.
488 reviews58 followers
January 31, 2026
I do not often rate novella’s five stars; however, I LOVED this book. We learn so much about Augustine and his magic in this book. We knew Cornelius and Matilda are special but we discover how much they outclass other animal mages in this book. We also learn more about the Harrison family and how their magic actually works. I wish the story was longer. I also wish Andrews will write more about Augustine and Diana. This is my all time favorite series and I missed getting new stories in this world. I miss the Baylor’s and want more stories about Nevada and Rogan, Catalina and Alessandro, Arabella, Bern and Runa, and Leon.
Profile Image for Ashley.
194 reviews1 follower
January 30, 2026
A deeper look into Augustine and Diana?! Sign me up! Animals and magic?! Yes, please! Arabella cameos?! Full speed ahead!

House Andrews does it again with so much packed into a 205 page story!

In true BDH fashion, the book was devoured in about 2 hours....and now I want more! There is so much information and so many intriguing things that need follow up!

Thank you to House Andrews for feeding us some Pan(ther)cakes! iykyk.
Profile Image for Lindsi (Do You Dog-ear?).
807 reviews233 followers
February 6, 2026
Okay, can we talk about how stunning this cover art is? I’m completely obsessed and need a copy for my shelves ASAP. I absolutely love how Augustine is depicted, and while that’s not how I initially pictured Diana in my head, it’s how I’ll always picture her going forward.

I’m always happy to dive back into the Hidden Legacy world, and Best Business did not disappoint! It was so much fun getting a peek inside Augustine’s head, and I loved seeing how his relationship with Diana began. Augustine has always been so mysterious in the previous books. He keeps his cards close to his chest and doesn’t always react the way I expect him to. I think the Ilona Andrews duo did an amazing job of tying his past appearances into who he is in this book. We even get answers to questions we didn’t know we needed to ask.

I also enjoyed learning more about how the animal mage Primes function and seeing their magic in action. Diana is a beast—pun intended—and can be terrifying all on her own. We’ve seen Cornelius and Matilda in previous books, but Diana was usually on the periphery. I’m glad she got her own story and that we were able to see what she’s capable of, and the lengths she’ll go to protect what’s hers.

Honestly, if you haven't picked up a book by these two, you're seriously missing out! I live for their books and whatever their magnificent minds can come up with next.
Profile Image for Elena Linville-Abdo.
Author 0 books101 followers
February 3, 2026
Stars: 5 out of 5

I didn't know I needed an Augustine novella in my life, but I sure enjoyed it!

It's funny how he went from being a bad guy in the first Hidden Legacy book to a reluctant ally and even friend in the subsequent books. This novella explains some of the reasons behind the things he did. And you know what? I wouldn't mind reading more about him.

Arabella's short story was an absolute gem. I laughted outloud a few times while reading about how she dealt with the whole missing teen situation. Now I really want that Arabella trilogy.

Great entry into the Hidden Legacy series.
Profile Image for h o l l i s.
2,753 reviews2,317 followers
February 15, 2026
If this was just a cover rating, it would be five stars. Wow. Stunning. It's even more incredible considering this author duo is known for their.. well, not so great luck with covers. Can we get a Kate Daniels do-over in this style? Would buy. Anywho.

I think I will probably like this a little more when I reread it post-Hidden Legacy series reread — which I plan to do when all the Graphic Audio editions are out. Because while I remember Augustine, and while I remember Diana’s brother, it’s just that little bit removed to make me not quite as invested in this pairing as I could be. But the reason why they band together? (cue Monsters Inc. Boo voice) KITTY. A kidnapped blue magical tiger cub. My heart. And on the way to rescue said kitten, battles are fought which show just how powerful these two Primes are; not only that but they are both holding back some secrets around the extent of their powers (as one does) but they unbend enough, allow themselves to be vulnerable enough, to reveal some of those hidden talents. Along with some feelings..

And then it just ends.

But as promised we do get a little bit of an Arabella cameo, followed by her version of events that lead to said cameo, so hope is not lost, folks! We really might be seeing the continuation of this series via Arabella soon. Or, well, at least it’s no longer fully out of the realm of possibility.

If you've yet to try the Hidden Legacy series, I highly recommend.

3.5 stars

---

This review can also be found at A Take From Two Cities.
1,179 reviews18 followers
February 11, 2026
This seems like a teaser for a future book where we.see.Augustine and Diana deal with their burgeoning relationship. Obviously there are serious hurdles.to be overcome both of them being House Primes of different talents. Diana's talent involves animals while Augustine's skills lie in illusions so match between the two would not be acceptable by either family. But, the pull both of them feel towards each other is strong so we will have to.wait and.see.how it all turns out. Then we have a few.sweet and.fun short stories at the end. They are all.great reads my favourite being the one.where.Nevada gives birth........ I much say it's always a pleasure.to return to this magical world I love every one.of the Baylor family and their friends...............
Profile Image for Bookphenomena (Micky) .
2,962 reviews549 followers
March 8, 2026
This was an okay installment for me. After such a long wait for more from this series, it was a little anti-climatic. Here's a bit of what I liked and what I felt underwhelmed by.

I liked:
The animal plot
Seeing these characters who I barely remember as MCs
The growing interest I felt for Diana and Augustine
The Tigers
The illusions

What I wanted more of or felt underwhelmed by:
The convoluted 'where isss this going'
Where is Arabella, I thought she was going to be in this
The lack of follow through on the chemistry
The Arabella extra

I will still always turn up for this series, however.
Profile Image for hea booktubes.
1,721 reviews381 followers
February 1, 2026
About 60% of this is the actual story. Then Arabella’s pov. Then relevant shorts that were previously on the website. So good of course. I love when we get to see the intricacies of the different magics.
Profile Image for Jess.
3,651 reviews5 followers
February 2, 2026
Okay so I was EXTREMELY into this BUT, I feel that selling it as an Augustine/Diana novella was a mistake because if anything it was a PREQUEL to an Augustine/Diana novella WHICH I WOULD ALSO HAPPILY READ. As ever, fascinating world building. And excellent character dynamics. I just require MORE.
Profile Image for Ren Puspita.
1,508 reviews1,024 followers
January 31, 2026
5 STARS AND I NEED THE SEQUEL!!!

Ilona Andrews did it again. But, duh, it's so obvious they did it again because when they come back to the world of Hidden Legacy then I know they mean business.

I always like Augustine Montgomery, but I kinda like him more now when IA tell his story. As a reader, I only know and see him through Baylor sister's point of view. At first he seems like a jerk, cold, arrogant and aloof. He also the boss of Baylor PI agency before Nevada come into her power as a prime and Baylor become a House of its own. He is Connor Rogan's friend and in the end become a valuable ally to both House Baylor and House Rogan. But to finally see what he truly is and IA also reveal the way he look without his illusion magic are truly priceless. IA know how to deliver and left the BDH member to wanting MORE. How do I know that Augustine hide those delectable and yummy muscle behind his business-like appearance? Now, I want to read more Augustine in his combat suit and please more of him punching enemies here and there. I like that Augustine is different than Connor who have telekinetic ability since Augustine's magic mostly are about illusion, he relied on his combat and martial art. Although his illusion ability is not to be underestimated as well.

I also know that Augustine's significant other will be Diana Harrison, a head of House Harrison and also animal mage Prime. Back then, there were discussion that Augustine will be paired with Arabella and I agree with IA, that's will be icky. Augustine is practically much older than Arabella and he is family friend. If Arabella end up with Augustine, he will come as grooming her, god forbid! So, I really glad that IA write how Augustine and Diana's crossed path. I like that both parties feelings are mutual. Diana recognized Augustine while Augustine also kinda attracted to Diana. The opposite attracts trope work wonder. And if Augustine think that his magic did not compatible with Diana's animal magic, he must take note from his best friend, Connor. I mean, even Connor and Nevada's magic type kinda didn't compatible, they still have their HEA. I like that in Beast Business, reader get to know more about the animal mages. In Hidden Legacy novels, I only know the animal mage from Cornelius because Diana is just a minor characters. To read about her past, her relationship with Cornelius and her connection with animal make her also a character to be connected with.

IA is a master of tease and boy...Beast Business is a slow burn. With the emphasis of BURN. Like, the sexual tension is off the chart its left me wanting for me. There's no actual sex scene, both Augustine and Diana barely kiss. I don't even count the kiss near the end of the scene as KISSING!!! It's just a light kissing and I wish I know what Augustine feel about that kiss. Please give them a kiss, a REAL DEAL KISS, AHHHH! That's why I say that IA is a tease, lol. While the problems kinda resolved, but there's more to come for Augustine and Diana. I agree with a reader in the IA FB group that .

While Beast Business is Augustine and Diana's story, IA also put a novelette from Arabella's PoV. The timeline is before and after event when Augustine and Diana join forces to rescue Celeste's cub. I really like Arabella's voice. She's a hoot but also have her own doubt and problems as well. Nevada come as strong and capable, maybe because she is a firstborn daughter. Catalina might be unsure of herself when she become Head of House Baylor, but she finally find her own footing. Arabella have her own luxury because she's the youngest but she also strive to become like her older sisters. Her voice feel fresh maybe because she still in her early twenties and her problems is more like how to make people see and recognize her talent outside her metamorphosis ability. I like her new budding friendship with Tia Madero and also Augustine's sister. I can't wa*t to read Arabella's adventure in the future. Also, there's no hint of Arabella's possible love interest, so I like that if IA will finally write Arabella's books (maybe after Maggie, Innkeeper, Kate Daniels and so on), I believe they will never let me down.

I end up reading Beast Business twice because I can't get enough! Blame it to a certain Illusion Prime and the wild Animal Mage Prime that might be his worthy opponent in the love department. I will be lying if I said I don't need the sequel. Because, yes, sequel please. I need the closure, lel!
Profile Image for Cait.
2,747 reviews4 followers
January 31, 2026
I can’t quite whole heartedly give this a 5 even though that is my IA standard. This was a good novella! I’m just not sure it was what I expected. I love the world though & always happy to be back with hidden legacy
Profile Image for Mim.
383 reviews2 followers
February 7, 2026
The problem with Ilona Andrews books is that you always want to get the next one immediately.. and there is (for now) no new hidden legacy book 😭 this was too short god dammit 😭😭
Profile Image for SheLove2Read.
3,133 reviews206 followers
February 1, 2026
Love being back in this world! Augustine and Diana have an interesting road ahead. The addition of the Arabella and Tia I hope means we'll have some stories for them as well. 5 stars
Displaying 1 - 30 of 542 reviews

Can't find what you're looking for?

Get help and learn more about the design.