It's 1982, and the innovative FBI Behavioral Science section is breaking new ground. Emma Lewis and Travis Bell, two teenagers with valuable skills, are recruited to interview convicted juvenile killers for information on cold cases.

When they're drawn into an active case targeting teenagers, everything starts to unravel. Over Travis's objections, Emma becomes the conduit between the FBI and an incarcerated serial killer, nineteen-year-old Simon Gutmunsson, who is a super-intelligent sociopath. And although Simon seems to be giving them the information they need to save lives, he's also an expert manipulator playing a very long game ...

Can Emma and Travis stop a serial killer on the loose - or will they fall victim themselves?

'A YA Silence of the Lambs that blew me away with its daring premise, gripped me with its twists and turns, and kept me up all night until its stunning conclusion. Marney brings the serial killer thriller to YA with riveting suspense and sizzling style. Don't read this book in the dark!' - CS Pacat

'With its dark, intriguing premise, gripping suspense and riveting pace, None Shall Sleep is an exhilarating read.' - Fleur Ferris

'Utterly terrifying and impossible to put down.' - Lili Wilkinson

'Tightly written with whip-smart characters, None Shall Sleep pulled me in and didn't let go until the bone-chilling conclusion. A clever and compelling story that rattled me long after I put the book down. Fans of Mindhunter will love this.' - Sarah Epstein