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A secret society. A suspicious death. A trail of deadly clues.

London, 1889. When Emma Langley discovers a mysterious symbol in her late husband’s diary, she uncovers a connection to a secretive treasure-hunting group with powerful members. Her investigation takes an unexpected turn when Lord Charles Harpole, a society member, is found dying in his hotel room.

The authorities rule it suicide, but Emma and her friend Penny Green aren’t convinced. As they follow a trail of cryptic clues leading from St. Paul’s Cathedral to Hampton Court, they find themselves caught in a deadly game.

With suspects ranging from the lord’s grieving fiancée to his ambitious brother, Emma must solve the puzzle before the killer claims another victim. But in the fog-shrouded streets of Victorian London, someone will stop at nothing to keep the society’s secrets buried…

Emma Langley returns in this gripping Victorian mystery that weaves historical detail with page-turning suspense.

368 pages, Kindle Edition

First published July 1, 2025

689 people are currently reading
109 people want to read

About the author

Emily Organ

72 books657 followers
Emily Organ is the author of over thirty historical cozy mysteries set in Victorian and 1920s England. Her bestselling series include the Penny Green Victorian Mysteries, the Augusta Peel Mysteries, and her newest Emma Langley Victorian Mysteries, in which a plucky widow teams up with former reporter Penny Green. She also writes the Churchill & Pemberley cozy mysteries, featuring two spirited senior sleuths. Emily’s books combine warmth, wit, and a love of history, inspired by her fascination with London’s past. 

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Displaying 1 - 30 of 86 reviews
Profile Image for Grandma Susan.
388 reviews262 followers
July 22, 2025
Such a delightful, suspenseful story. Loved the sleuths, Emma and Penny. The timeframe was well rendered. I plan to read the first and subsequent books in this series. Highly recommend.

I was blessed with an ARC. The opinions expressed are my own and unbiased.
Profile Image for Angela.
682 reviews255 followers
July 14, 2025
The Poison Puzzle by Emily Organ

Synopsis /

A secret society. A suspicious death. A trail of deadly clues.

London, 1889. When Emma Langley discovers a mysterious symbol in her late husband’s diary, she uncovers a connection to a secretive treasure-hunting group with powerful members. Her investigation takes an unexpected turn when Lord Charles Harpole, a society member, is found dying in his hotel room.

The authorities rule it suicide, but Emma and her friend Penny Green aren’t convinced. As they follow a trail of cryptic clues leading from St. Paul’s Cathedral to Hampton Court, they find themselves caught in a deadly game.

With suspects ranging from the lord’s grieving fiancée to his ambitious brother, Emma must solve the puzzle before the killer claims another victim. But in the fog-shrouded streets of Victorian London, someone will stop at nothing to keep the society’s secrets buried…

My Thoughts /

First and foremost, a huge THANK YOU to NetGalley, Storm Publishing and author, Emily Organ for providing me with a copy of this publication, which allows me to provide you with an unbiased review.

After reading The Whitechapel Widow, (the first book in this series), earlier this year and loving it, when I saw that NetGalley had book #2 up for request I couldn't hit that button quick enough.

This historical mystery series is fast becoming one of my favourites, and if the rest of this author's works are of the same calibre, I'm going to have to empty out my social calendar pretty quickly so I can have time to read her back catalogue.

The character of Emma Langley reminds me (a little) of Miss Eliza Scarlet, one of the main characters in the British-American period television crime drama, "Miss Scarlet and The Duke". Quick plot summary: In Victorian London, 1882, Eliza Scarlet is left almost penniless when her father, Henry, unexpectedly dies. Although marriage would appear to be her only option for financial security, Eliza resolves to take over her father's detective agency alone, working under his name. Struggling to build her reputation in the male-dominated world of crime-solving, she frequently calls on her childhood friend William Wellington, a gruff Scottish detective inspector of Scotland Yard, for assistance.

Similarly, in this series, the character of Emma Langley was left penniless when she discovered, after the death of her husband William, that he had been systematically siphoning off her wealth without her knowledge and had left her with nothing but huge debts. WILLIAM YOU CAD!

In The Poison Puzzle, Emma has again joined forces with her good friend and confidante, former journalist Penny Blakely. When a good Samaritan offers her his coat, after she had been thoroughly drown by a passing hackney one evening, Emma had no idea that returning the coat the next day would be the catalyst to a whole new mystery to solve.

When Emma and Penny arrive at the Hotel room of society member, Lord Charles Harpole, little did they realise that they would be the last two people to see him alive. With his dying breath, whispering "help", Emma and Penny realise that Charles Harpole's death was not accidental.

Book #2 Highlights:

🔎 Both Emma and Penny are sensible, inquisitive, intelligent, compassionate women, who are very likeable and very relatable. I'm enjoying how the author is developing their partnership and growing these characters.

🔎 The author's use of real Victorian London landmarks as significant plot clues in this mystery only adds to the authenticity of the story.

🔎 Another highlight for this reader is the mystery itself; refreshingly new and not overwritten; plenty of plot twists and red herrings.

If you enjoy reading period mysteries I'd highly recommend this series.

With thanks to NetGalley and especially to one of my favourite publishers, Storm Publishing 💗 for the much appreciated arc in return for an honest review. All opinions expressed in this review are my own. The publication date is currently set for July 23, 2025.
Profile Image for Kimberly .
687 reviews154 followers
August 14, 2025
Charming as expected

Wonderful story of two women coming together to solve a crime committed in Victorian London. Emily Organ always manages to produce characters that warm my heart...like stepping back in time. Bravo!
Profile Image for Zoé.
129 reviews
July 7, 2025
I loved reading The Whitechapel Widow earlier this year, so I was thrilled to continue the journey with the next installment in the series. And I think I enjoyed the second book even more!

Once again, Emily Organ delivers an entertaining and atmospheric story set against the backdrop of high society London in the 19th century.
This time around, Penny and Emma find themselves drawn away from the foggy alleys of Whitechapel and into a treasure hunt of sorts, unraveling clues left behind by Emma’s late husband. The shift in setting and tone gives this sequel a fresh feel, while still maintaining the charm that made the first story enjoyable.
As with the first book, the historical notes at the end are a welcome added bonus.

I'm already looking forward to the sequel and can't wait to see Penny and Emma accidentally stumble upon murders and mysteries.

Thank you very much to Storm Publishing and NetGalley for the ARC. This is my honest opinion of the book.
Profile Image for Kathleen Riggs.
597 reviews20 followers
July 30, 2025




Clever and Atmospheric Mystery Full of Twists

The Poison Puzzle is a delightful Victorian whodunnit that blends historical intrigue with a satisfying treasure-hunt twist. Emily Organ once again proves she’s a master of cozy historical mysteries. This second book in the Emma Langley series works perfectly as a standalone.
I loved the clever plot involving a secretive society, cryptic symbols, and a suspicious death that everyone else is too quick to label a suicide. Emma and Penny make a fantastic investigative pair intelligent, determined, and refreshingly grounded. Their sleuthing takes us through foggy London streets and famous landmarks, giving the whole book a vivid and immersive atmosphere. The mystery had plenty of red herrings, and just when I thought I had it figured out, another twist surprised me. The pacing is brisk, with no dull moments, and the final reveal was satisfying. Thanks to NetGalley and to the publishers of this book for giving me a free advance copy of the book to preview and I am leaving this review voluntarily.
Profile Image for Mariama Thorlu-Bangura.
280 reviews6 followers
September 13, 2025
I had a hard time getting into this book. It didn't instantly grab me when I began reading it, and there were too many chapters. I actually skimmed through until the last few chapters and read to discover who the killer was. Not who I expected, and the why was a little disappointing, too. However, what ended up happening to the killer was ultimately sad. The mental unraveling was sad to read and imagine. Not my favorite of the series so far.

Thanks to NetGalley for access to this arc. All thoughts and opinions are my own.
Profile Image for Christine.
1,469 reviews42 followers
June 19, 2025
A very pleasant read! The well described historical background allowed for the atmospheric ambiance of the novel. The characters are mostly convincing: only Penny sounds much too modern . Even though I totally agree with her feminist ideas, her character doesn't feel natural somehow. However, this is only a detail. The plot was intricate and hooking. I enjoyed this second book in the series much more than the first one. I will definitely read more novels by Emily Organ.
I received a digital copy of this novel from NetGalley and I have voluntarily written an honest review.
160 reviews1 follower
July 6, 2025
Thank you to NetGalley for the opportunity to read and review this book. It is an enjoyable mystery / treasure hunt set in the late 1800s in London. Once you start reading, it is easy to get lost in the bygone era and go on the hunt with the 2 lead characters. The author does a nice job in portraying that time in history and with the lead characters being women, it is interesting seeing the world through their eyes. The plot was well thought out with the twists and turns expected in a good mystery.
Profile Image for Kimberly.
1,045 reviews40 followers
June 16, 2025
Book Review: The Poison Puzzle by Emily Organ
Thank you to Storm Publishing and NetGalley for my ARC.

The Poison Puzzle is everything I want from a historical mystery: a compelling central mystery, an intelligent and capable protagonist, immersive period detail, and a plot that twists in ways I didn’t expect. Emily Organ continues to impress with the Emma Langley series, and this second installment hits even harder than the first. We’re thrown into the murky streets of 1889 London where secrets lurk in drawing rooms, cryptic clues hide in ancient cathedrals, and no one is quite who they seem.

The story begins when Emma Langley finds a strange symbol in her late husband’s diary—an intriguing little clue that leads her straight into the path of a secretive treasure-hunting society with powerful and dangerous members. From the moment she and her friend Penny Blakely—former journalist and reliable partner in crime-solving—stake out a mysterious London townhouse and witness eight cloaked men slipping inside, the mystery tightens like a noose. Organ wastes no time setting the stakes, and that sense of urgency carries through the entire book.

When Lord Charles Harpole, a society member, is discovered dying in his hotel room, the authorities call it suicide. But Emma and Penny aren’t buying it, especially after hearing his last whispered word—“Help.” That moment kicks off a whirlwind investigation involving hidden keys, secret symbols, coded notes, and a series of chilling murders that trace back to the heart of the mysterious society. What could have been a simple whodunit becomes something much richer and more layered. There’s a treasure at the center of it all—but the real prize is the truth, and the cost of unearthing it might be their lives.

What I loved most about this book is how textured and real Emma feels. She’s not a stock Victorian widow—she’s clever, persistent, emotionally complex, and driven by a blend of curiosity, grief, and a need for justice. Organ has a knack for writing strong female characters who are grounded in their time yet still feel relatable. Emma’s not fearless—she doubts, worries, second-guesses—but she pushes forward anyway, and that’s what makes her so compelling. Penny, too, is a standout character—quick-witted, brave, and endlessly loyal, balancing the intensity of the mystery with warmth and humor. Their partnership is the backbone of the novel, and their chemistry makes every scene richer.

One of the book’s highlights is its use of historical settings. Organ does a phenomenal job using real Victorian London landmarks as puzzle pieces in the investigation. We get to explore St. Paul’s Cathedral’s Whispering Gallery, the twisting Hedge Maze at Hampton Court Palace, the cozy and creaky Ye Old Cheshire Cheese pub on Fleet Street, and even the Serpentine in Hyde Park. The way these places are folded into the narrative is so seamless that I often had to remind myself this was fiction. And at the end, the author’s historical notes add a whole other level of appreciation—I love when a mystery makes me want to dig deeper into the real-world places and facts behind the fiction.

The maze sequence deserves special mention. It’s a tense, breathless chapter that had me on edge. Emma and Penny become genuinely lost, stalked by an unknown figure, and for a moment it feels like the Victorian setting has turned into a gothic horror. Organ plays with fear and suspense masterfully here, and the way she evokes claustrophobia and disorientation without needing to over-explain is impressive. It’s just one example of how well this book balances mood, action, and character development.

Another strength is the structure of the mystery itself. There are plenty of red herrings—suspects include Lord Harpole’s grieving fiancée, his shifty brother, and other society members with hidden motives—and I enjoyed being wrong more than once. The puzzle pieces are cleverly arranged, and while readers can try to solve the case alongside Emma, the final reveal still managed to surprise me. It’s not just about who did it—it’s why, and that emotional weight gives the ending its punch.
Profile Image for Bethan.
Author 3 books9 followers
August 29, 2025
The Poison Puzzle

​By Emily Organ

​Chapter: Forty- Three, Page 153

​🌟🌟🌟🌟

​°•.  “If you want. Although I don't see how that helps anything. I shall have to fetch it from my study.” 

He strode there, retrieved it from a drawer, then strode back again. There was too much to do and too much to think about. And now this! “ He handed the letter to Trotter.”

“Can you confirm this is your brother's handwriting?” he asked.

“ It looks like it.

Richard sat down again.

“Are you saying, someone forged it?”

“It's possible. It's only a short note, isn't it? And impersonal too.”

“Do you mind if we keep this letter for the time being?” asked Blakely.

“No, not at all. You do whatever you want with it. I can't say it's something I particularly want to reread. ...”  °•.

​Review

|:: A womanising presence is fleeting in a man's world. Does that give them the right to behave as they like?

​Emma Langley and Penny Green are not women you would want to anger. And yet, it seems they are ignored, pushed aside, and threatened no matter what they do—even when they are trying to do the right thing.

​Emma is brave in her own way, with a quiet confidence and pride that is understated given the time in which she was born. No matter the task, she is willing to do her part in a mystery that needs to be solved. She feels compelled to because this all started with her ex-husband and his vial of hidden secrets.

​Penny is confident and straight to the point. She doesn't want to waste time and would rather be forward and wrong than shyly wait for the perfect moment to be right. Although motherhood has tamed her wilder days, she still enjoys the thrill of the chase.

​When a map falls into their laps, Emma and Penny must make a decision as people—strangers and loved ones alike—come under the scrutiny of a masked murderer who is going undetected by the police and, believe it or not, even them.

​As time starts to run out, they are forced to partner with unsavoury characters and trust those they normally never would.

​Is the end prize worth the sacrifice? Is the thrill of the chase justification enough to answer for your loved ones getting hurt?

My Thoughts

​I liked Emma straight away; she was sure of herself, even in the face of unknown terror as she took in her husband's secrets. With the help of her friend Penny, who very quietly grew on me, it was clear they have a very strong bond, and in stories of this kind, that doesn't happen often.

​I loved James; he was a pillar of strength for both women. When he was attacked, it brought out a vulnerable side of both ladies, which I didn't think I would see from Penny. It proved she chose the right guy.

​It also seemed like there might be a new, budding romance on the scene for Emma. I thought early on that Constance's behaviour was rather needy and not what a Victorian lady should be. She changed her mind on a whim, depending on what her husband thought.

​I was sad about Lord Charles Harpool. His story was just beginning; however, her beautiful fiancé was a little condescending to me. Although we had a Romeo and Juliet moment, all we had as a description for Maitland was a bushy moustache, and that was all I could see whenever he was mentioned.

​I really loved reading this book, and I cannot wait to read the next one. It's so interesting to see a Victorian saga that allows women to solve its mysteries and be the champions of their own achievements. ::|

​Title: The Poison Puzzle

​Author: Emily Organ

​Publish Date: 23/7/25

​Publisher: Storm Publishing

​Review Score: 4/5

​A huge thank you to Emily Organ, Storm Publishing, and NetGalley for the opportunity to read and relay my honest feedback.
Profile Image for Anna.
651 reviews
June 15, 2025
Thank you NetGalley and Storm Publishing for the opportunity to read "The Poison Puzzle" in exchange for my honest opinion.

This is the second book in the Emma Langley Victoria Mystery series and it was worth the wait because it is a fantastic read. The story is set in January 1889 and Emma Langley is about to get mixed up in another murder as she searches for answers. She found a sinister symbol in her late husband's diary and she went to the address in the diary and found the same symbol on the door plaque.

With her friend Penny Blakely a former news reporter they watch 8 men enter the house and they hope to talk to one as they exit but they are not a friendly bunch. When Emma gets splashed by a hansom cab a gentleman gives her his coat and asks her to return it the following day. When they find the man dying and they learn that he is a Lord, they suspect that something sinister happened to him. They end up with a key to a left luggage locker and they embark on a treasure hunt not realizing that some dangerous men are also on the hunt.

Miss Organ brilliantly wrote about a maze, the reader will feel the claustrophobia that Penny and Emma do and the fear when they realize that someone is following them. In my opinion the piece about the treasure is a fantastic reveal that the reader will not expect coming.

This story is also about the power of ladies joining forces and they can accomplish anything they set their minds to.

One feature of Miss Organ's books that I really enjoy is her historical notes. In this story she give us extra information on the Whispering Gallery at St. Paul's, the Hedge Maze at Hampton Court Palace, the Ye Old Cheshire Cheese that has stood on Fleet Street since 1538, St. Mary's Hospital in Paddington, The Royal Opera House in Covent Garden, St. Bartholomew the Great, The Serpentine in Hyde Park, and the Old Police House built in 1870. It is always interesting to learn more about the places that are mentioned in the story.

This series deserves more than 5 stars in my opinion.

Danger reaches close to home for Penny. When another person is murdered they have to reconsider their suspects.
Profile Image for Meg Pearson.
473 reviews10 followers
September 1, 2025
Emily Organ’s The Poison Puzzle is the second in the Emma Langley Victorian Mystery Series, and it’s every bit as absorbing as its predecessor. Set in 1889 London, the story plunges us into gaslit streets, drawing rooms, and shadowy alleys where secrets fester.

Emma Langley, recently widowed and financially constrained after her late husband squandered her inheritance, once again finds herself pulled into intrigue. When a cryptic discovery among her husband’s belongings leads to the suspicious death of Lord Charles Harpole—officially ruled suicide—Emma and her sharp-witted friend Penny Green are convinced murder is at play. Their investigation unearths a clandestine society, a puzzling treasure map, and ties that hint disturbingly close to Emma’s own past.

Emma is a protagonist worth rooting for: thoughtful, brave, and slowly coming into her own confidence in a world that expects her to remain silent. Penny, with her journalist’s instincts and brisk energy, balances her beautifully, and their friendship is the heartbeat of the novel. Emily Organ also excels in atmosphere—Victorian London feels like an extra character in the narrative, at once claustrophobic and full of possibility.

The mystery itself is cleverly layered. The clues unfold with the right mix of surprise and inevitability, and while some elements stretch believability (as with all good treasure-hunt plots), the sheer fun of the chase keeps you turning pages. Themes of gender, class, and the cost of secrets are woven seamlessly into the suspense, making this more than just a cozy mystery.

Fans of Deanna Raybourn, Irina Shapiro, or Kelley Armstrong’s historical mysteries will find much to admire here. Organ has created a series that feels fresh yet comfortingly classic, with two women who refuse to be sidelined in a man’s world.
Profile Image for Cathy Geha.
4,358 reviews119 followers
September 6, 2025
The Poison Puzzle by Emily Organ
Emma Langley Victorian Mystery #2

~ A solid addition to the series with Emma and Penny once again working together to solve a murder mystery ~

What I liked:
* Emma Holland Langley: widow, piano teacher, living with the Solomons, curious, tenacious, a bit naïve, persistent, appeared reckless at times, mature in some ways but not in others
* Penny Green Blakely: happily married with two young children, retired investigative reporter, puzzle solver, strong, works well with Emma
* The friendship between Emma and Penny
* James Blakely: Penny’s husband, Scotland Yard Detective Inspector, loving father & husband, supportive, intelligent, protective, good man
* The Solomons: Landlords, took Emma in when her husband disappeared, good people
* The mystery of the symbol Emma found in her husband’s diary and where it leads and what it was a clue to
* The solution to the puzzle – sometimes the clues seemed too easily found and predictable, though
* That this would appeal to people who don’t like complicated plots and are able to believe that women of this era would work as amateur sleuths willing to go where Emma & Penny went and act/do as they did
* That everything was tied up in a bow with no loose ends at the end of the story

What I didn’t like:
* Who and what I was meant not to like
* The loss of innocent and not so innocent lives
* The murderer and the warped thinking of that person
* That the story was a bit too predictable and at times reminded me of Nancy Drew stories…simple though with a satisfying ending

Did I like this book? Yes and no
Would I read another book in this series? Maybe, if the synopsis interested me

Thank you to NetGalley and Storm Publishing for the ARC – This is my honest review

3-4 Stars
384 reviews1 follower
July 10, 2025
I enjoyed this more than the previous Emma Langley mystery. This book stands on its own merits and without the distraction of Jack the Ripper stalking the pages, the mystery is able to blossom and really come to the forefront. A man dies almost in their arms and they are left with a series of clues that promise to lead to a treasure and answers.

A treasure hunt across London ensures as Emma and Penny race to be one step ahead of the villains. I really enjoyed the dynamic the two female characters had, each supporting and uplifting the other. Penny is maybe a little too 'modern' for her setting but I found her chapters where she's struggling with motherhood, and all the guilt that comes with being a mother but wanting to remain her own person, incredibly powerful. Penny is going through so much, and well done to her for still trying to carve a little bit of herself back. Emma is growing in confidence, but still has the fear you'd expect of her - she didn't choose this life and her reactions are pretty spot on.

There are also two male characters introduced, and I suspect its going to be a love triangle there. Not really sure how I feel about it, because they both need a lot more development - one of them is from the previous series by this author, but I've not read any of those, so it was like meeting him new. They both seem nice but at the moment rather bland.

As with the previous book, you have chapters which are from different characters PoV's and they offer a nice break while also giving the reader tantalizing hints about what is going on. There are clues scattered across the book as to who did it, which I always like.

A very entertaining read.

~Thank you to NetGalley for the ARC in return for an honest review~
570 reviews3 followers
July 23, 2025
BOOK: THE POISON PUZZLE
AUTHOR: EMILY ORGAN
PUB DATE: 23RD JULY, 2025
🕵🏼‍♀️🕵🏼‍♀️
REVIEW
Thanks to Netgalley and the publisher for this ARC. I voluntarily read and reviewed an advanced copy of this book. All thoughts and opinions are my own.
🕵🏼‍♀️🕵🏼‍♀️
This was an amazing sequel to the first book, Whitechapel Widow. I didn't really like the first book in the series, but I was determined to give Emma and Penny another chance, and I'm glad I did! Both of them are such good friends now, and Emma is better at being an amateur sleuth. She did a good job here, and I was impressed!
🕵🏼‍♀️🕵🏼‍♀️
The book started with another secret her dead husband kept from her. She saw a mysterious sign, informed her friend, and they both started looking into it. They basically worked on two cases, the homicide and looking for the treasure. They did a really good job with both, even outsmarting the police officers and others who were interested in the treasure.
🕵🏼‍♀️🕵🏼‍♀️
In the previous book, I complained that Emma solved the case without doing much. However, I could see the effort she put into it this time. Following the clues diligently, questioning suspects on her own. She has become a better detective, and I would love to see more of this! I loved Penny's part, too. She has a series of her own, but I like how the author expresses the situation of mothers at that time. Penny loves being a reporter, but she doesn't know how to balance it with being a mother and societal expectations. She's an amazing writer and detective.
🕵🏼‍♀️🕵🏼‍♀️
This book was interesting, although it was a bit slow in the beginning, but it was still okay. I was not prepared for the plot twist, it was very good and surprising. I would definitely recommend this and can't wait for the next book in the series!
🕵🏼‍♀️🕵🏼‍♀️
648 reviews3 followers
July 26, 2025
Emma Langley was young and widowed, and in Victorian times, the man was the head of the household and Emma, at the time, could not find fault with her husband, till he was murdered, and then she realised that he had left Emma broke after wasting her inheritance so now she gives piano lessons to pay her way. While going through his diary, she comes across a society club that deals with lost treasure. When the treasure is found, they all have a share. However, to Emma's dismay, this club her husband was paying into was expensive, so now she knows where some of her money went. Penny, her journalist friend, one of her kind at the time, decides to find out about this club, but at first looks to see who goes in and out of this building, and while watching, a carriage approaches and sprays rainwater all over Emma, and she is very wet. When Lord Harpole, being a gentleman, takes off his cloak and wraps it around Emma. Penny and Emma now have an excuse to give the cloak back and ask questions about the club, but when they arrived at the hotel where he was staying, he was barely alive, and never made it to the hospital.
Penny thinks Lord Harpole was murdered and tells her husband, who is a detective with the local police force, who said it could be possible and would look into it.
Penny and Emma carry on trying to find out more about this club, but are they putting themselves in a very precarious position, and could they also end up dead?
A very enjoyable read, the author has given good details on how things in Victorian times differ from today.
Was Lord Harpole murdered? Have a read, you will not be disappointed, and believe there is a 3rd book on the way.
Profile Image for Natalie.
278 reviews9 followers
July 16, 2025
Emma Langley is still trying to figure out what her late husband was up to before his death. She again enlists her friend Penny Green Blakely. As they surveil a mysterious house associated with her late husband, they encounter Lord Charles Harpole, but he ends up dead the next day. Emma and Penny are the ones to discover the dying peer, but no amount of help can save him. While the man may have been a cad, who had the motive to kill him and what is going on with this map everyone keeps hinting at? Emma and Penny are on the case and soon in possession of the map. The clues are vague, but the killer is getting closer than ever.

Emma is developing into a confident, savvy investigator who is taking control of her life. She is stepping up to ask tough questions of witnesses and suspects and is making connections at Scotland Yard. Ancillary characters are delightful and may provide Emma with a future love interest. Though her financial circumstances are still less than desirable, she has a good social circle of support and a job as a piano teacher. I am enjoying getting to know Emma and look forward to the next story in the series!

“The Poison Puzzle” is the second entry in the Emma Langley Victorian Mystery series by Emily Organ (author of the Penny Green series). It can be read as a standalone.

This story is great for readers who enjoy historical mysteries set in the Victorian era.

I received an advance review copy for free from NetGalley and Storm Publishing, and I am leaving this review voluntarily.
Profile Image for Andrea.
289 reviews
October 4, 2025
Emma Langley and Penny Blakely nee Green are inquisitive.....possibly too inquisitive for their own good. "The Poison Puzzle" is Book 2 of the Emma Langley Victorian Mysteries series and there is also the Penny Green series to enjoy as well.

If there weren't so many deaths, I would call "The Poison Puzzle" by Emily Organ a fun caper (I certainly had fun reading it), but it is a murder mystery set in foggy 1889 Victorian London. There are clues galore for readers to pick up on and race the ladies to find the murderer of Charles Harpole. And not to mention a secret society, treasure hunt and a family secret that comes back to bite at the end of the book.

We are taken throughout London's streets and sites in the most vivid way. The mystery flowed seamlessly, dispute it's many characters and twists and turns ( sometimes literally in the Hampton Court Palace maze). The short chapters make it easy to pick up and put down the book whenever you get the chance.

Our leading ladies are brave and definately ahead of their time. They have their own traits and frailties but hold a warm friendship and similar tenacity which binds them together, and finds them in personal danger time and time again.

While book one of the series gives background into their personal lives, you can still read "The Poison Puzzle" as a standalone.....I am now eager to get started on book 3!. I enjoy Emily's easy to read style of atmospheric historical mystery.
Thanks to NetGalley, Storm Publishing and Emily Organ for this copy.
Profile Image for Valerie Thirkettle-Kayser.
178 reviews3 followers
September 15, 2025
When I started reading this novel, I realised it was book 2 of a series. So, I stopped and read the first book before coming back to this one.
It was a good idea.
Book 1 sets the scene and we meet Emma and Penny as they investigate what may have happened to Emma’s husband, unravelling a whole string of crimes. Penny is already an excellent investigative journalist and Emma discovers that she has a real talent for detective work. The two of them are a great combination and they manage to solve their first case together.
In the second book, they start again from what may have been the source of Emma’s husband demise and find themselves caught into another series of crimes involving this time a map, a treasure and a family secret. The two show again their talent and solve their second case after a page turning plot and with many uncomfortable situations they found themselves in.
The two novels are very well written and researched. The background of the late 1880’s is well woven into the story, and our two investigators are both bound to the conventions of the time and ahead of their times. All characters are well developed and interesting and there is always some mystery as to who they really are, keeping the reader entertained until the very last page.
I really enjoyed the first two books and I am now eagerly waiting for the third one, soon to be published.

Thanks to NetGalley and Storm for the ARC of this book. All opinions are my own.
Profile Image for Courtney Pityer.
751 reviews42 followers
June 11, 2025
This novel does justice at living up to it's name in the title. The Poison Puzzle is a extraordinary murder mystery novel which takes place in Victorian England. It is part of a series and I will say i will definitely be looking into the other books because these two female amateur detectives are the best. Not only that there is literally a plethora of other murderers in this novel that it makes you wonder about the sanity of some people. I was very impressed with this story.
Emma Langaly is tryibg to figure out some details concerning her late husbands death after finding a strange symbol in his diary. She enlists the help of her friend Penny to look into it as she believes her husband may have been involved with a secret society. However at the location they arrive late and a kind stranger gives Emma his coat.
The next day they go to return the coat only to discover Lord Harpole is dead. The death is rules a suicide but Penny and Emma are convinced it was murder because they heard him murmur the word help. There is a wide list of suspects such as the fiance and Lord Harpole's brother but those turn out to be dead ends. But soon other murders occur and someone assaults Penny's husband. Will they be able to find the true killer and the motive before it is too late.
I received an arc copy from Netgalley and all opinions are of my own.
Profile Image for Lily.
1,506 reviews13 followers
August 22, 2025
In the second book in this historical mystery series set in 1889 London, readers follow Emma Langley as she tries to discover the connections between a mysterious symbol in her late husband’s diary and a secret treasure hunting group with powerful members, including the recently murdered Lord Charles Harper. Emma and Penny Green don’t agree with the authorities and choose to follow a trail of cryptic clues across London as part of a deadly game. With too many suspects and hidden dangers, readers have to help Emma and Penny solve the mystery before someone else winds up dead. Complex, intense, and immersive, readers will love the depth of detail in this historical setting and the mystery itself, which has some fascinating elements and complex details. The mystery is well-written, intriguing, and immersive, and the historical details really bring the story to life. The characters are also well-written and detailed, and Emma and Penny’s dynamic is also particularly interesting as they team up to solve this murder. Packed with detail, immersive, and fascinating, readers will love the latest instalment in this Victorian historical mystery series from Emily Organ because the mystery is deep and complicated and the characters are brilliant, fascinating, and immersive.

Thanks to NetGalley and Storm Publishing for the advance copy.
Profile Image for Mary Polzella.
376 reviews7 followers
September 26, 2025
In the fog-coated City of London in the late 1800s, Emma Langley discovers a mysterious symbol in her late husband’s diary, she uncovers a connection to a secret treasure-hunting group with powerful members. When Lord Charles Harpole, a society member, is found dying in his hotel room the authorities rule it suicide, but Emma and her friend Penny Green aren’t convinced. They follow a trail of clues and discover a trail of suspects ranging from the lord’s grieving fiancée to his ambitious brother. Emma must solve the puzzle before the killer claims another victim.

Emma and her best friend Penny are back to solve another mystery! I loved the first book in this series (The Whitechapel Widow) and was excited to read this next book. I love Emma and Penny's characters - they're warm, smart, brave and resilient women who are always pushing the boundaries during Victorian London when women were expected to behave in a certain manner. The story is intricately woven but not over the top and there are a number of red herrings dotted along the way. The picture of Victorian London is beautifully drawn for the reader and the book is engaging and atmospheric. A definite recommendation from me! Can't wait to read the next one.

Thank you @netgalley and @stormbooks_co for the opportunity to read and review this book.
Profile Image for Randee Green.
Author 7 books77 followers
June 16, 2025
Tracking the secret society that her late-husband belonged to leads Emma Langley straight into another murder investigation. Emma and her friend, Penny Green-Blakley, find another member of the society just as he is succumbing to a laudanum overdose. The police initially rule the death a suicide, but Emma and Penny are convinced that Lord Charles Harpole was poisoned. Following a set of clues that will allegedly lead them to a long-buried treasure, Emma and Penny must stay one step ahead of the lord’s brother, his fiancé, and the other members of the secret society if they hope to find the treasure before they fall victim Harpole’s killer.

THE POISON PUZZLE was a fantastic follow-up to THE WHITECHAPEL WIDOW, and I thoroughly enjoyed the story. The novel is maze of suspenseful moments, red herrings, and unexpected twists and turns. There are plenty of suspects and suspicious characters. The murderer came as quite a surprise. While still cautious and in need of Penny’s guidance, Emma takes more of a lead this investigation. I was a huge fan of Penny Green, and I’m glad to have her back. She and Emma make a great team, and I can’t wait to read about their next adventure. I highly recommend the Emma Langley Victorian Mystery series to anyone who enjoys thrilling, historical mysteries.

Thanks to NetGalley and the publisher for the ARC.
Profile Image for Jan.
6,531 reviews100 followers
June 15, 2025
Emma is still trying to unravel the odd clues left over from the peculiarities surrounding her husband's death and the questions that remain unanswered. Her ally in this endeavor is former Fleet Street reporter Penny Green and her husband Inspector James Blakely of Scotland Yard. The point is clearly made by Penny that freedom and self-identity are lost when a parent attempts to work from home without help whether in 1889 or now. The venture begins when Emma tries to return a valise but finds the owner dying of apparent suicide. That is only the first, but they are not suicide. They are murders. Now the investigation gets really complicated!
It was well worth my time to read the historical note.
I requested and received a temporary uncorrected digital galley from Storm Publishing via NetGalley. Avail Jul 23, 2025 ***** #NetGalley @goodreads @bookbub @librarythingofficial
#ThePoisonPuzzle by Emily Organ #EmmaLangleyVictorianMysteriesBk2 @stormbooks_co #cozymystery @barnesandnoble #netgalleyreviewer #booksamillion #bookshop_org #poison #bookshop_org_uk #kobo #Waterstones #VictorianLondon #victorianmysterynovel #friendship #investigations #journalist #wasitsuicide #secretsociety #realdetectivework
Profile Image for Cheryl.
242 reviews4 followers
July 20, 2025
The Poison Puzzle by Emily Organ was a wonderful and enjoyable historical mystery novel. I read this #2 book in the series without having read the first one. Now I will need to go back and read it. Emma Langley and Penny Blakely are the main characters and the author brought them to life.

Emma is a widow and Penny is married with children and a former journalist. The mystery begins when Emma finds a mysterious symbol in her late husband's diary. Then when Emma is splashed by a passing cab, someone offers Emma a coat to wear and asks her to return it the next day. When she and Penny go the hotel to return the coat to Lord Charles Harpole, they discover him to be near death. He whispers 'help' to the ladies and they are the last people to see him alive. His death is ruled suicide, but Emma and Penny think differently and they begin their own investigation. Emma discovers a key to a locker in the coat pocket of Lord Harpole. The key is to a case left at a locker. The luggage case contains a map that sets them out on a secret society treasure hunt. They stumble upon clue after clue that opens up new possibilities to the murder and somehow Emma's late husband is connected in the mystery.

The story was very entertaining with twists that keep you guessing! I sure didn't guess who the murderer was until close to the end. This is the first book I've read from this author and I look forward to reading more from her.

Thank you to NetGalley and Storm Publishing for an ARC in exchange for an honest review.
Profile Image for Helen.
598 reviews16 followers
July 22, 2025
I thank NetGalley and Storm Publishing for an advance reader copy of The Poison Puzzle. All opinions and comments are my own.

What does a secret society and the hunt for the “lost” treasure of Sir Francis Drake mean for the likes of our amateur detectives Emma Langley and Penny Blakely? Well, it means our intrepid duo get themselves in a bit of hot water as they involve themselves in the investigation of a very unpleasant place and the very unpleasant men that populate the building, one that Emma’s dead husband visited. We begin with a murder, continue with house break-ins, more murder, blackmail, and the thrill of deciphering a puzzle map created by someone who delighted in the quest more than the destination. A tangled plot keeps readers busy while author Emily Organ ensures there’s nary a slow spot.

Expect a lot about thoughts and feelings. Penny, being pulled between her old life as an investigative reporter and her new one as a wife and mother -- the one she’s expected to enjoy completely in Victorian times; Emma, what’s to become of her as a widow -- and her realization of what the dead husband was really up to. It is interesting to follow along as they come to grips with their present lives and the testing of societal bonds of Victorian England.
Profile Image for Ali Bunke.
1,006 reviews
June 18, 2025
The Poison Puzzle is the second installment in The Emma Langley Victorian Mystery Series, offering an engaging blend of historical intrigue and detective work. This time, Emma Langley and her investigative partner, Penny Grbl7een, follow a cryptic symbol from Emma’s late husband’s diary, uncovering connections to a secret treasure-hunting group. Their search takes a darker turn when Lord Charles Harpol dies under suspicious circumstances, and with the police ruling it a suicide without further inquiry, the two women take it upon themselves to uncover the truth.

The novel excellently captures the Victorian era, ensuring the investigation remains grounded in methods that would have been available to women at the time. Though the story carries a light tone, it is intricately woven with layers of complexity. There is suspense, red herrings and a host of suspicious characters adding to the mystery. The interactions between Emma and Penny, as well as their sharp logical reasoning, make for an enjoyable and immersive reading experience.

Thank you NetGalley and Storm Publishing for the advanced reader copy. This is my honest review.
Profile Image for Bethany Swafford.
Author 49 books90 followers
July 15, 2025
When Emma Langley discovers a mysterious symbol in her late husband’s diary, it leads her to a secret society seeking treasure. After one of its members is found dead under suspicious circumstances, Emma and her friend Penny Green begin unraveling a trail of clues across London. With danger mounting and powerful enemies closing in, Emma must uncover the truth before another life is lost.

Emma and Penny have teamed up once again, though it felt more like Penny’s case than Emma’s. This was a mix of murder mystery and treasure hunt. Sometimes they decipher the clue, and sometimes someone else provides the next jumping point. Until the end, which felt...a bit anticlimactic.

There are a lot of characters to keep track of, which was the same problem I had with the first book. When the narrative jumps from person to person with each new chapter, it makes it difficult to really know any of the characters. I don’t feel as though I know Emma any better than I did before.

Overall, it was an entertaining book. Readers who enjoy a fast paced, historical mystery will probably enjoy this one.

I received an advance reader copy via NetGalley and all opinions expressed are my own.
4,173 reviews21 followers
July 23, 2025
The Poison Puzzle by Emily Organ is the second book in the series dealing with Emma’s late husband and his mysteries associations and activities. The Emma Langley Victorian Mysteries has a character, Penny Green, from another series that helps Emma out in her investigations. In fact, she encourages strongly for Emma to continue when Emma has doubts in her abilities and If she even should continue.

In many ways this is an addictive series as the title indicates. It has a charming female lead characters who is growing in her own confidence. A friendship that continues to grow strong as well as supporting likable characters. The clues are interesting but not so easy to solve which keeps one thinking throughout the story. Then a guilty party that is clever and hides their trail well. Lastly Victorian London provides such an atmospheric ambiance that it feels almost like a character too. A compelling read with female sleuths that is not to be missed for fans of Irina Shapiro’s Tate and Bell Series, Jolie Tunnell’s Mrs. Kelly Series or Kelley Armstrong’s Rip Through Time. Here is another famously good series o add to your list of favorites as I have.
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