'Deliciously dark and utterly compelling - I couldn't put it down.' - CLARE MACKINTOSH They're locked up for your safety. Now, you're locked in with them. How do you find a murderer in a prison full of killers? On a locked ward in the world's highest-security prison hospital, a scream shatters the night.A nurse has been murdered and her daughter has been taken.And with only five days to find the girl, the clock is ticking for Dr Connie Woolwine to find a killer hiding in plain sight... Welcome to The Institution. The locked room thriller readers don't want to leave. 'This is the best book I've read in years!' ⭐⭐⭐⭐⭐'I don't think I have ever read anything that gripped me quite so intensely.' ⭐⭐⭐⭐⭐'An absolutely mind-blowing suspense thriller.' ⭐⭐⭐⭐⭐'Terrifyingly brilliant. An absolute must-read.' ⭐⭐⭐⭐⭐'A book that evolves at break-neck speed, taking the reader on a spine-chilling journey.' ⭐⭐⭐⭐⭐'If this book isn't a smash hit I'll claw my own eyes out!' ⭐⭐⭐⭐⭐'Tense, exciting, heart-thumping action' ⭐⭐⭐⭐⭐'Deliciously creepy, unflinching and addictive.' ⭐⭐⭐⭐⭐'A first-class locked room thriller.' ⭐⭐⭐⭐⭐'Gobsmackingly good!' ⭐⭐⭐⭐⭐'Helen Fields' talent for creating atmospheric thrillers knows no bounds.' ⭐⭐⭐⭐⭐'A real page-turner; what a ride straight from the outset. I felt physically chilled.' ⭐⭐⭐⭐⭐'Chilling, claustrophobic and packed with twists and turns.' ⭐⭐⭐⭐⭐'Original and innovative...a crackingly scary thriller.' ⭐⭐⭐⭐⭐'Dark, atmospheric, creepy and hauntingly good. Kept me guessing until the end - I loved it.' ⭐⭐⭐⭐⭐'Amazing is all I can say - I loved it!' ⭐⭐⭐⭐⭐