From the pen of Sunday Times bestselling author Michael Palmer comes this unsettling, frightening and mesmerising medical thriller that ingeniously combines an accomplished plot with authentic scientific detail. A page turner from beginning to end that fans of Michael Connelly, Peter James and Robin Cook will love.

READERS ARE LOVING FLASHBACK!

'A keep you up all night type of book' -- ***** Reader review

'A good read from beginning to end' -- ***** Reader review

'Nail-biting, even scary at times... carefully researched and utterly credible. A very good read.' -- ***** Reader review

'I lost a lot of sleep reading this one - because I couldn't put it down!' -- ***** Reader review

'Wonderfully entertaining' -- ***** Reader review

'Enjoyed from cover to cover'-- ***** Reader review

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ONE ROUTINE OPERATION. ONE HORRIFYING SECRET.

Toby Nelms is an ordinary 8-year-old boy who needs a routine operation. Everything seems to go well - the surgery is a success and Toby is sent home.

Months later, terror begins to take over Toby's life - he keeps on bursting into tortured screaming. He has begun to relive every moment of his operation - including the immense pain.

Neurosurgeon Zack Iverson must discover why the young boy is re-experiencing every detail of the operation.

Unsettlingly, Toby is not the only patient who is suffering this strange and horrific effect after surgery.

Iverson needs to get to the bottom of what is causing this, and find out the truth quickly, before another patient is wheeled into the Operating Room, to experience every slice of the scalpel's merciless blade for the rest of their life...