Agatha Christie – The Unseen Library

Publisher: Poisoned Pen Press (ebook – 19 August 2025)

Series: Standalone

Length: 310 pages

My Rating: 4.5 out of 5 stars

Those looking for a fun and very meta murder mystery that looks back at the classics should check out the very amusing new novel from Australian author Sulari Gentill, Five Found Dead.

There are few Australian crime fiction authors whose works have entertained me over the years as much as Sulari Gentill’s have. An amazing author who knows how to combine unique premises with compelling mysteries, Gentill has written some great novels over the years. I am a particular fan of her Rowland Sinclair series about an unlikely gentleman protagonist in the 1930s who solved crimes loaded with historical cameos, while some of her more recent standalone novels, such as Crossing the Lines, The Woman in the Library and The Mystery Writer, have also received critical acclaim. As such, I was very happy to get my hands on her latest novel, Five Found Dead, which had a very fun plot behind it which resulted in quite an exciting and fast-paced read.

Plot Synopsis:

On a train, there are only so many places to hide…

Crime fiction author Joe Penvale has won the most brutal battle of his life. Now that he has finished his intense medical treatment, he and his twin sister, Meredith, are boarding the glorious Orient Express in Paris, hoping for some much-needed rest and rejuvenation. Meredith also hopes that the literary ghosts on the train will nudge Joe’s muse awake, and he’ll be inspired to write again. And he is; after their first evening spent getting to know some of their fellow travelers, Joe pulls out his laptop and opens a new document. Seems like this trip is just what the doctor ordered…

And then some. The next morning, Joe and Meredith are shocked to witness that the cabin next door has become a crime scene, bathed in blood but with no body in sight. The pair soon find themselves caught up in an Agatha Christie-esque murder investigation. Without any help from the authorities, and with the victim still not found, Joe and Meredith are asked to join a group of fellow passengers with law enforcement backgrounds to look into the mysterious disappearance of the man in Cabin16G. But when the steward guarding the crime scene is murdered, it marks the beginning of a killing spree which leaves five found dead—and one still missing. Now Joe and Meredith must fight once again to preserve their newfound future and to catch a cunning killer before they reach the end of the line.

Gentill brings the fun with this very compelling and exciting crime fiction novel that serves as a great love letter to a classic Agatha Christie novel. Bringing together a colourful array of characters, including an overabundance of cliche detectives and setting them loose against an apparent serial killer, Five Found Dead was a very easy book to fall in love with, and I ended up powering through it in less than a day.

The plot for Five Found Dead had a lot of interesting elements to it, which resulted in a very fast-paced novel that hit a lot of entertaining notes. Starting off with some quick introductions to the lawyer protagonist and her author brother, you soon find yourself aboard the iconic Orient Express. A natural setting for any murder mystery, Gentill brought together an amusing array of characters inspired by classic crime fiction novels, many of whom are revealed to have law enforcement backgrounds, as well as a very similar grudge. The story naturally soon devolves into a compelling murder mystery when a guest disappears from their blood-soaked room. Thanks to a new strain of coronavirus infecting part of the train, the passengers find themselves stuck on the rails, and it falls to the protagonists and the various assembled detectives to solve the case. However, a series of additional murders quickly unfold across the train, resulting in chaos and anarchy, especially when the normal passengers of the train attempt to escape the growing massacre.

I loved the excellent and fast pace of Five Found Dead as Gentill cleverly lays out the respective murders and keeps increasing the stakes of the plot. While much of the story is intentionally silly, including the appearance of so many stereotypical detectives with connections to the initial victim, the author works it into a great investigation angle, and I had fun working out who was behind the killings. There are some fantastic twists and turns throughout the book, and while I saw a few reveals coming thanks to the featured clues, the identity of the actual antagonist hit me by surprise. Some of this was due to the clever red herrings and potential alternate suspects that Gentill included, although I must admit the brilliantly crazy disguise utilised by the killer helped a lot. This led to a very exciting and over-the-top conclusion, where all the secrets come out and the various fun storylines come together. I had an absolute blast getting to the end of Five Found Dead, and Gentill crafted an extremely exciting murder mystery here that served as an homage to the classic, while also bringing its own flair to the occasion.

While Five Found Dead is loaded with amazing and familiar characters, I feel that I need to highlight protagonist Meredith Penvale and her brother Joe as the two best written characters in the novel. A pair of Australian twins, Meredith and Joe have journeyed to the Orient Express to celebrate Joe’s recent cancer remission and to rejuvenate his writing muse. While much of the story revolves around Meredith’s inadvertent role as amateur detective aboard this train of suspicious souls, Gentill also spends time examining the emotional health of these two main characters, and as a result dives deep into the impacts of cancer and the effects it can have on both the sufferers and their loved ones. In this case, Meredith is the loyal sister who sacrificed a successful career to care for her brother and, now that he’s recovered, is wondering where her life will go and whether to follow her true passions. Joe, on the other hand, is a seemingly light-hearted figure who has an amusing meta initial arc about a murder mystery set onboard the Orient Express. However, there is also a lot of hidden fear in Joe about his cancer returning, which sees him literally running from bad news, while also trying to keep this potential truth from his long-suffering sister. You can tell that Gentill put a lot of herself into these two characters, and their personal focuses outside the mystery are extremely realistic and powerful. Indeed, these personal concerns and the powerful writing that accompanies them gives Five Found Dead some much needed emotional heft that helped to evolve this novel into something truly special. Throw in all the additional eccentric figures that accompany Meredith and Joe onto the Orient Express, and Five Found Dead has a truly amazing cast who enhance the entire story.

Overall, I found Five Found Dead to be an addictive and engaging novel that I honestly couldn’t stop reading. Sulari Gentill’s latest standalone novel was a wonderful blend of mystery, charming humour and complex characters, that came together into something extremely awesome. I really enjoyed Five Found Dead, and it is an excellent read for someone in the mood for a light-hearted murder mystery with some amazing heart to it.

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Rules for Perfect Murders Cover

Publisher: Faber & Faber (Trade Paperback – 3 March 2020)

Series: Standalone

Length: 272 pages

My Rating: 4.5 out of 5 stars

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In a mood for a complex and rather clever murder mystery? Make sure to check out Rules for Perfect Murders, the curious latest release from bestselling crime fiction author Peter Swanson.

Across the greater Boston area a series of unsolved murders have been committed. None of the deaths appear to have anything in common, except for the fact that each one bears a similarity to a famous literary murder. However, there is one other tenuous link that could tie the murders together, and FBI agent Gwen Mulvey is curious enough to meet with the owner of the Old Devils mystery bookshop, Malcolm Kershaw, to test her theory.

Years ago, Malcolm posted an article on his bookshop’s blog titled Eight Perfect Murders, detailing the eight homicides in literary fiction that he thought were the cleverest ways to kill someone and get away with it. This list features some of the most devious cases ever conceived by some of the history’s greatest mystery writers, from Agatha Christie’s The ABC Murders to Strangers on a Train by Patricia Highsmith. Now it appears that several of the killings match the unique selection of books that Malcolm listed all those years ago. Is the killer using his post as a guide for his gruesome work?

Working with Agent Mulvey, Malcolm soon discovers a link between himself and the killings, as one of the victims was a former customer of his store. Convinced that the killer is someone he knows, Malcolm attempts to find them before they finish off his list. However, not everything is as it seems, and Malcolm must come to terms with some of his darkest secrets if he is to find the killer stalking him from the shadows.

This is the sixth novel from Swanson, who debuted back in 2014 with The Girl with a Clock for a Heart. I have not previously had the pleasure of reading any of Swanson’s books before; however, I really loved the concept behind this novel, and thought it would be a fun one to check out. Rules for Perfect Murders, which was also released as Eight Perfect Murders, is an intriguing and compelling novel that presents the reader with a fantastic murder mystery while also acting as a love letter to the murder mystery genre. This turned out to be an excellent read, which I was able to power through in just over a day.

I rather enjoyed the way that Swanson wrote Rules for Perfect Murders, mainly because he emulated some of the classic murder mystery novels which he clearly loves throughout the story. The book is told in first person, from the point of view of the protagonist, Malcolm Kershaw, and it is made to represent a manuscript, recalling the events that he experienced. The story than details the investigation into the murders that are occurring in the present day, while also diving back into the protagonist’s past, while also featuring a number of examinations about elements of the protagonist’s world, including his opinion about certain mystery novels. This first-person perspective really fits the tone of the book extremely well, and Swanson did an excellent job winding the various elements of the story, including the protagonist’s flashbacks, into a tight and captivating read. The various writing methods that Swanson employs throughout the book are direct references to a number of famous mystery novels, as the fictional author of the book is inspired by them as he writes. It was really fun to see the protagonist discussing the pros and cons of things like unreliable narrators, red herrings and other elements, right when he was utilising them in his manuscript. At the same time, the way that parts of the story go down, are very similar to some classic mystery stories. All of this helps create a very unique tale, and I think that Swanson did an amazing job bringing this clever concept together.

In the midst of Swanson’s homages and descriptions of classic and great mystery novels lies a rather good murder mystery storyline, as the protagonist attempts to find out who using his blog post as a basis for the killing spree. Swanson is able to produce a thrilling and clever mystery, full of twists, false leads and intriguing motive that tie into the protagonist’s complex past. It was also rather interesting to see the killer craft modern murders out of the classic scenarios featured in the fictional Eight Perfect Murders list, especially as these elements served as a complicating factor in the investigation. I thought that the end result of the mystery was pretty satisfying, and while I was able to make some guesses about parts of the protagonist’s past, the identity of the murderer was a bit of a surprise for me. I had a fantastic time getting to the bottom of this mystery, and the compelling murders that Swanson painted did an amazing job catching my attention and interest, which ensured that I powered through Rules for Perfect Murders in short order.

In addition to utilising a number of classic murder mystery tropes and techniques in Rules for Perfect Murders, Swanson also spends considerable time discussing or analysing a number of classic and iconic murder mystery novels. Swanson really dives in and does several mini reviews of a swath of great murder mystery novels, providing what I assume are his own opinions, while also examining the book’s featured murders, the strengths and weakness of their stories, the cultural impact that they had and so much more. The main focus is on the books that appeared on the fictional Eight Perfect Murders list which is made up of such classics as The Red House Mystery by A. A. Milne, Malice Aforethought by Anthony Berkeley Cox, The A.B.C. Murders by Agatha Christie, Double Indemnity by James M. Cain, Strangers on a Train by Patricia Highsmith, The Drowner by John D. MacDonald, Deathtrap by Ira Levin and The Secret History by Donna Tartt. However, Swanson also references and discusses a bunch of other mystery novels, the plots of which or the lessons they contained often having some impact or bearing on the story. I loved this dive into each of these mystery novels, and I found it really cool that Swanson was able to insert his own opinions and obvious love from each of these books into this story.

Due to the author’s examination of all these classic novels, Rules for Perfect Murders is highly recommended for those hardcore murder mystery fans who are familiar with the books featured on the list, who will really love all the references and discussions that Swanson features throughout his novel. Those who are particularly knowledgeable about murder mystery stories will be able to guess where the story is going based on the literary clues the author leaves throughout the narrative. At the same time, Rules for Perfect Murders is also a great book for readers who are less familiar with these mystery novels. I personally have not read any of the eight books on the fictional list, although I was familiar with how some of the plots went. However, despite this lack of knowledge, I was in no way disadvantaged while reading Rules for Perfect Murders, as Swanson gives concise and knowledgeable summaries of each of the relevant books, which allowed me to follow the plot without any issues. I was able to appreciate most of the references that the author included throughout the book, and I am tempted to go out and read some of the featured books, as most of them sounded extremely interesting. I think that this examination and utilisation of classic murder mysteries works well with story Swanson came up with, and I honestly had fun learning more about these books and seeing the impact that they can have on a modern story.

It was kind of cool to read this novel from the perspective of a blogger and book reviewer, as this is novel written by a book lover, about a book lover. I found myself relating to the protagonist in a number of ways, and his observations about the joy books can bring really resonated with me. His habit of analysing the various books he reads is something many reviewers are going to appreciate, and I really liked that this novel is based around a best-of list. As someone who regularly produces top ten lists, I had a fun time with this concept, and I couldn’t help imagining what I would do in a similar situation (gasp, what if someone used my one of my lists to commit some crimes? Think about all the Star Wars themed murders that would happen!). I also had a good chuckle when the protagonist starting reminiscing about all the troubles he had creating his lists, such as leaving key books off, going back and reconsidering his choices and troubles with including entries that technically don’t belong on the list, as I have been there multiple times. This was a fun part of the book, which I rather enjoyed, although it didn’t take away from the darker tone of the book’s murder mystery and character elements.

Rules for Perfect Murders by Peter Swanson was a rather interesting and unique read that I am glad I decided to check out. Swanson crafts a fascinating and captivating tale, that not only contains a fantastic central whodunnit, but which acts as an amazing homage to the murder mystery genre. Filled with some excellent and entertaining elements, this is an outstanding read which I had a great time reading. This is a book perfect for all murder mystery fans, Swanson is definitely on my radar from now on, and I look forward to seeing what he writes next.

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