If you’re a fan of gripping crime fiction, Dervla McTiernan’s Cormac Reilly series is a must-read. Set against the moody backdrop of Ireland, this series follows Detective Inspector Cormac Reilly as he navigates complex mysteries, police politics, and personal struggles. With richly developed characters and atmospheric storytelling, these books are perfect for fans of Tana French and Ian Rankin. To fully immerse yourself in Cormac’s world and follow his character arc, reading the series in order is highly recommended. Below, we’ve compiled the complete Cormac Reilly books in order, including prequels and main novels, along with insights to hook you into this addictive series.
Why Read the Cormac Reilly Series?
Before diving into the reading order, let’s explore why this series has captivated readers worldwide:
- Compelling Protagonist: Cormac Reilly is a dedicated yet flawed detective, balancing professional challenges and personal relationships, making him relatable and engaging.
- Authentic Irish Setting: McTiernan’s vivid descriptions of Galway and Ireland’s countryside create an immersive, atmospheric experience.
- Award-Winning Storytelling: The series has earned prestigious awards, including the Ned Kelly Award for The Ruin and the Barry Award for The Good Turn.
- Intricate Plots: Each book delivers self-contained mysteries with unexpected twists, while an overarching narrative ties the series together.
Ready to start your thrilling journey? Here’s the complete Cormac Reilly series in both publication and chronological order.
Cormac Reilly Books in Order of Release Date
Below is the complete list of Dervla McTiernan Books in the Cormac Reilly series, featuring main novels and prequel novellas. Arranged by release date, this guide helps readers follow the gripping crime stories in perfect order, ensuring an engaging reading experience with Cormac Reilly’s investigations.
| Title | Release Year | Type |
|---|---|---|
| The Ruin | 2018 | Novel |
| The Sisters | 2019 | Prequel Novella |
| The Scholar | 2019 | Novel |
| The Roommate | 2020 | Prequel Novella |
| The Good Turn | 2020 | Novel |
| The Murder Rule | 2022 | Standalone Novel* |
| What Happened to Nina? | 2024 | Standalone Novel* |
| The Unquiet Grave | 2025 | Novel |
Note: The Murder Rule and What Happened to Nina? are standalone novels with loose connections to the Cormac Reilly series.
Cormac Reilly Books in Publication Order
The Cormac Reilly series currently consists of six novels and two prequel novellas. Below is the publication order, which is the recommended reading sequence to follow character development and overarching storylines.
- The Ruin (2018)
In this acclaimed debut, young Garda Cormac Reilly discovers the body of Hilaria Blake in a crumbling Galway house, leaving behind two neglected children, Maude and Jack. Twenty years later, Cormac, now a seasoned detective, is drawn back to this cold case when a body surfaces in the River Corrib. As doubts arise about the original investigation, Cormac uncovers corruption and secrets that challenge his trust in the police. This “spectacularly good” novel is a perfect introduction to the series.
Why Read It? A heart-wrenching, fast-paced thriller with a morally complex mystery.
Perfect For: Fans of cold-case mysteries and Irish crime fiction. - The Scholar (2019)
Cormac’s girlfriend, Dr. Emma Sweeney, stumbles across a hit-and-run victim outside Galway University. The victim is Carline Darcy, heir to Ireland’s powerful Darcy Therapeutics. As Cormac investigates, he faces intense scrutiny and uncovers connections that threaten his career and personal life. This award-winning sequel ramps up the suspense.
Why Read It? A twisty plot with deep character development and a high-stakes investigation.
Perfect For: Readers who love academic intrigue and corporate conspiracies. - The Good Turn (2020)
Cormac faces enemies within the Garda and personal turmoil as he investigates a young girl’s disappearance. Meanwhile, Garda Peter Fisher, a loyal ally, is banished to Roundstone, where he uncovers a web of corruption and danger. This “taut, tense, and darkly addictive” novel is a fan favorite.
Why Read It? A multi-layered story with strong secondary characters and a satisfying resolution.
Perfect For: Those who enjoy police procedurals with emotional depth. - The Murder Rule (2022)
Though technically a standalone, this novel ties into the Cormac Reilly universe with subtle connections. It follows a law student infiltrating a legal project to uncover truths about a past crime. While not essential for the series, it’s a gripping addition for fans.
Why Read It? A standalone thriller with ties to Cormac’s world, perfect for a break from the main series.
Perfect For: Readers who enjoy legal thrillers. - The Unquiet Grave (2025)
The latest installment sees Cormac investigating a body found in a Galway bog, initially thought to be historical but revealed as a missing local principal. As more bodies surface, Cormac suspects a serial killer, racing against time to stop them.
Why Read It? A chilling, high-stakes mystery with a fresh serial-killer angle.
Perfect For: Fans of dark, atmospheric crime stories. - What Happened to Nina? (2024)
Another standalone with loose ties to the Cormac Reilly series, this thriller explores the disappearance of Nina during a weekend trip with her boyfriend, Simon. It’s a gripping addition for fans craving more of McTiernan’s storytelling.
Why Read It? A suspenseful standalone with emotional depth and complex characters.
Perfect For: Readers who want a break from the main series but love McTiernan’s style.
Prequel Novellas
These audio-exclusive novellas provide backstory for Cormac Reilly and are best enjoyed after The Ruin to avoid spoilers.
- The Sisters (2019)
This prequel novella explores Cormac’s early career and his encounter with two sisters climbing the ranks in the Garda. At just over three hours, it’s a quick, engaging listen.
Why Read It? A short, character-driven story that adds depth to Cormac’s early years.
Perfect For: Audiobook fans looking for a quick dive into Cormac’s past. - The Roommate (2020)
Another prequel novella, this audiobook follows a young Cormac as he tackles a case involving a mysterious roommate. It’s a standalone story that enriches the series’ world.
Why Read It? A compact mystery with early insights into Cormac’s detective skills.
Perfect For: Fans wanting more of Cormac’s backstory.
Chronological Order vs. Publication Order
While the publication order (listed above) is the best way to experience the series for character development and narrative flow, the chronological order differs slightly due to the prequels. Here’s the chronological sequence:
- The Sisters (prequel novella, set before The Ruin)
- The Roommate (prequel novella, set before The Ruin)
- The Ruin
- The Scholar
- The Good Turn
- The Unquiet Grave
Note: The Murder Rule and What Happened to Nina? are standalones with minor connections, so they can be read at any point, though after The Good Turn is ideal for context.
Tips for Reading the Cormac Reilly Series
- Start with The Ruin: It sets up Cormac’s backstory and the series’ tone. Reading out of order may spoil key character arcs.
- Listen to the Audiobooks: The Irish accents in the audiobooks enhance the experience, especially for The Sisters and The Roommate.
- Expect Emotional Depth: McTiernan’s background as a lawyer adds authenticity, and her focus on character growth makes each book emotionally resonant.
- Check for Updates: With The Unquiet Grave released in 2025, stay tuned for new additions via McTiernan’s newsletter or sites like BookNotification.com.
Why Dervla McTiernan’s Series Stands Out
Dervla McTiernan, a former lawyer turned international bestseller, brings authenticity and depth to her crime novels. Her Cormac Reilly series has sold over 525,000 copies in Australia and New Zealand alone, with The Ruin optioned for a TV adaptation by Hopscotch Features and Colin Farrell’s Chapel Place Productions. The series’ blend of police corruption, complex mysteries, and Irish culture has earned praise from critics like Marian Keyes and Val McDermid. Whether you’re new to crime fiction or a seasoned reader, these books deliver page-turning suspense and unforgettable characters.
Where to Buy the Cormac Reilly Books
You can find the Cormac Reilly series at major retailers like Amazon, Penguin Random House, or World of Books for used copies. Audiobooks, including the prequel novellas, are available on Audible. Check your local library for copies or browse online for deals.
Start Your Cormac Reilly Journey Today!
Dive into the dark, thrilling world of Detective Cormac Reilly with The Ruin and follow his journey through Ireland’s criminal underbelly. With each book offering a standalone mystery and a piece of Cormac’s evolving story, this series is perfect for binge-reading. Have you read any Cormac Reilly books yet? Share your thoughts in the comments or let us know which book you’re most excited to start!
Happy reading, and may you uncover the secrets of Galway alongside Cormac Reilly!
Keywords: Cormac Reilly books in order, Dervla McTiernan, crime fiction, Irish detective series, The Ruin, The Scholar, The Good Turn, The Unquiet Grave, mystery novels, police procedural.
