
Based on your book
by Glasgow, Kathleen
When a girl goes missing in the affluent coastal town of Castle Cove, Alice Ogilvie finds herself at the center of the chaos. She is an outcast with a reputation for trouble, but she is also obsessed with the mystery novels of Agatha Christie. To clear her name and find the truth, she teams up with Iris, a local girl who is as sharp-tongued and guarded as Alice is frantic. The two form an unlikely alliance, trading secrets and hunting for clues that the police have overlooked. The pacing here is relentless, moving between witty banter and genuine dread as they peel back the layers of their town’s perfect facade. If you enjoy solving puzzles alongside cynical, intelligent protagonists who refuse to play by the rules, this will keep you up well past your bedtime.
Since you enjoyed the blend of high-stakes amateur sleuthing and sharp character dynamics in The Agathas, these titles are curated to scratch that same itch. Whether you are looking for the obsessive puzzle-solving energy of A Good Girl's Guide to Murder or the intense, claustrophobic social hierarchies found in The Ivies and One of Us Is Lying, these stories lean heavily into the trope of the unlikely detective. Each selection highlights the thrill of uncovering dark, small-town secrets and the complex, often messy friendships that form when the truth is the only goal.
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Like 'The Agathas', this novel features a determined teenage girl conducting her own investigation into a local cold case, blending high school dynamics with a gripping, high-stakes mystery. It captures the same obsessive, puzzle-solving energy and the feeling of uncovering dark secrets hidden beneath a small town's surface.
This book mirrors the ensemble-cast mystery vibe of 'The Agathas', where a group of unlikely students becomes entangled in a high-profile investigation. It excels at balancing character-driven drama with a classic whodunit structure that keeps the reader guessing until the end.
Stevie Bell is a true-crime aficionado just like the protagonists in 'The Agathas', and her attempt to solve a cold case at an elite boarding school provides a similar intellectual thrill. The narrative structure, which weaves past and present mysteries, will appeal to fans who enjoy classic detective homages.
While darker and more visceral than 'The Agathas', this story of a girl on a vengeful quest to find her sister's killer shares the intense, driving need to uncover the truth at all costs. Fans who appreciated the investigative podcast elements and the grit of Glasgow's writing will find this deeply compelling.

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This thriller combines the high school social hierarchy setting of 'The Agathas' with a much more sinister, systemic conspiracy. It offers the same fast-paced, page-turning mystery experience while exploring the dark underbelly of elite education.
by Kara Thomas
This book delves into a small town plagued by a series of tragic deaths, mirroring the 'small town secrets' motif found in 'The Agathas'. It features a protagonist digging into the past to uncover the truth, providing a similar blend of personal grief and investigative suspense.
by Ellie Marney
For readers who enjoyed the 'detective duo' aspect of Alice and Iris, this thriller features two teenagers working with the FBI to catch a serial killer. The psychological depth and the intense partnership between the leads will resonate with fans of Glasgow and Lawson's character dynamics.
by Dana Mele
This novel leans into the 'mean girl' and social hierarchy tropes that often underpin high school mysteries, much like the setting of 'The Agathas'. It is a twisty, psychological thriller that keeps the reader questioning the reliability of everyone involved.
This story follows a young woman who goes undercover to investigate a drug ring, blending high-stakes investigation with deep personal stakes. Fans of 'The Agathas' will appreciate the protagonist's resourcefulness and the way the mystery forces her to confront her own community's secrets.
by Alexa Donne
Set in an ultra-competitive prep school, this book deals with murder and social climbing, making it a perfect thematic match for the high-stakes environment of 'The Agathas'. It offers a witty, fast-paced look at how far students will go to protect their secrets and their futures.

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