Leave No Trace: A Novel

**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.