Kat and Lock Series by Jo Callaghan 3 Books Collection Set - Fiction - Paperback

Titles in This Set
In the Blink of an Eye
Leave No Trace
Human Remains

Details
Condition: Brand New
Format: Paperback
Publisher: Simon & Schuster
Genre: Crime, Thriller & Mystery

Overview
Dive into Jo Callaghan's gripping Kat and Lock series, following Detective Chief Superintendent Kat Frank and her AI-generated partner, AIDE Lock, as they tackle Britain's most baffling cold cases. This brand new paperback set brings together all three addictive thrillers in one collection: In the Blink of an Eye, Leave No Trace, and Human Remains. Blending sharp procedural detail with a genuinely fresh human-versus-AI dynamic, this is a must-read crime fiction series for anyone who loves smart, twisty mysteries with real emotional depth and a cast of characters readers won't soon forget.

About the Books
The Kat and Lock series launched with In the Blink of an Eye, introducing DCS Kat Frank, a veteran detective mourning her husband and reluctantly partnered with AIDE Lock, an advanced AI detective built to investigate unsolved cases without bias, politics, or ego. Kat relies on instinct and lived experience, while Lock processes pure data and probability, and their clashing methods become the emotional engine of the series. In Leave No Trace, the second installment, Kat and Lock investigate a disappearance that refuses to add up, pushing both detective and partner to question what evidence, memory, and justice mean once a trail has gone cold. The series continues with Human Remains, the third book, which deepens the Kat and Lock partnership while raising the stakes with a case testing the limits of what an AI can understand about human motive and grief. Across all three books, Jo Callaghan uses a classic cold-case procedural structure to explore timely questions about technology, policing, and what is gained or lost when artificial intelligence enters deeply human spaces, making this series a standout pick for fans of character-driven mysteries with a speculative edge.

Key Benefits

• Complete 3-book paperback set of Jo Callaghan's Kat and Lock crime series
• Original human-detective-meets-AI-partner premise rarely seen in crime fiction
• Includes In the Blink of an Eye, winner of the CWA ILP John Creasey Dagger
• Each book delivers a satisfying standalone mystery within a larger story arc
• Brand new condition, ideal for crime fans, book clubs, and series completists
• A great gift for birthdays, holidays, or any mystery-loving reader

Book-by-Book Guide
In the Blink of an Eye — Introduces DCS Kat Frank and AI partner AIDE Lock, a debut that won the CWA ILP John Creasey (New Blood) Dagger.
Leave No Trace — Kat and Lock investigate a baffling disappearance, testing how human intuition and AI handle a cold trail.
Human Remains — The third Kat and Lock case pushes the partnership further with a crime that challenges what data alone reveals about motive.

About the Author
Jo Callaghan is a British author whose background in behavioral science and public sector leadership informs her Kat and Lock crime series. Her debut, In the Blink of an Eye, introduced readers to DCS Kat Frank and her AI partner AIDE Lock, winning the CWA ILP John Creasey (New Blood) Dagger. She has since continued the series with Leave No Trace and Human Remains, exploring policing, technology, and human grief. Callaghan's novels are praised for pairing tightly plotted mysteries with genuine insight into artificial intelligence and the justice system.

Why You'll Love This Set
This collection delivers three twisty, character-rich mysteries in one brand new paperback bundle, perfect for a cozy weekend read, a thoughtful birthday gift, a holiday stocking stuffer, or a fresh pick for your summer reading list. Kat and Lock's unlikely partnership makes every case feel fresh and emotionally resonant.

Please Note: This is the UK edition with the ISBN as listed; the cover may vary slightly from the image shown.