About the Book

"When the body of a man is found crucified at the top of a hill in the British midlands, AIDE Lock-the world's first AI Detective-and Detective Kat Frank are thrust into the spotlight as they are given their first live case. When a second body is found the police issue an extraordinary warning to local males aged between 30 and 40 years old: Avoid drinking in pubs; If you must go to a pub, do not leave alone; And definitely do not leave a pub with a stranger. With the national media and local men in an uproar, Kat and Lock have to combine their instincts and algorithms to catch the killer before they can strike again."--

Book Synopsis

From the bestselling author of In the Blink of an Eye comes an inventive thriller that pits algorithms against experience, logic against instinct, and one undetectable killer against two extraordinary detectives.

"Unswervingly gripping and scary, and at the same time beautifully tender and humane."--Nicci French, author of Has Anyone Seen Charlotte Salter?

When the body of a man is found crucified at the top of a hill in the British Midlands, AIDE Lock--the world's first AI detective--and Detective Kat Frank are thrust into the spotlight as they are given their first live case. When a second body is found, the police issue an extraordinary warning to local males aged between thirty and forty years old:

- Avoid drinking in pubs.
- If you insist on going to a pub, do not leave alone.
- And definitely do not leave a pub with a stranger.

With the national media and local men in an uproar, Kat and Lock have to combine their instincts and algorithms to catch the killer before they can strike again.

Review Quotes

"[An] interesting dichotomy of instinct and algorithm."--TODAY

"A thrilling ride with a twist of tech . . . this book is your next obsession."--The Seattle Times

"Compelling."--Criminal Element

"A smart, agile, immaculately plotted and moving thriller that is unswervingly gripping and scary, and at the same time beautifully tender and humane."--Nicci French, internationally bestselling author of Has Anyone Seen Charlotte Salter?

"Jo Callaghan has done it again with this intricately plotted, humorous, and incredibly moving thriller."--Laura Marshall, Sunday Times bestselling author of A Good Place to Hide a Body

"A brilliant, rapidly paced and plotted thriller. Couldn't put it down. Another masterpiece."--Imran Mahmood, author of Finding Sophie

"Callaghan's riveting sequel to Blink of an Eye . . . tweaks the traditional British detective story just enough, freshening up a well-worn formula without attempting to fix what isn't broken. This series deserves a long life."--Publishers Weekly

"[The] big reveal is unlikely to be foreseen by even the AI-abetted reader. This thriller may feature state-of-the-art AI, but its solid craftsmanship is timeless."--Kirkus Reviews

About the Author

Jo Callaghan works full-time as a senior strategist, carrying out research into the future impact of AI and genomics on the workforce. After losing her husband to cancer in 2019, when she was just forty-nine, she started writing In the Blink of an Eye, her debut crime novel, which explores learning to live with loss and what it means to be human. She lives with her two children in the British Midlands.