I am the most important figure in Marnie's life, but she doesn't know it yet . . .

I am the one who watches.

Marnie Logan often feels like she's being watched. Nothing she can quite put her finger on - a whisper of breath on the back of her neck, or a shadow in the corner of her eye - and now her life is frozen. Her husband Daniel has been missing for more than a year. Depressed and increasingly desperate, she seeks the help of clinical psychologist Joe O'Loughlin.

Joe is concerned by Marnie's reluctance to talk about the past, but then she discovers a book packed with pictures, interviews with friends, former teachers, old flames and workmates Daniel was preparing for Marnie's birthday. It was supposed to be a celebration of her life. But it's not the story anyone was expecting . . .

Praise for Michael Robotham's writing:

'Will have you turning the pages compulsively' The Times

'Robotham doesn't just make me scared for his characters, he makes my heart ache for them' Linwood Barclay

'Superbly exciting ... a terrific read' Guardian

'A nerve-shredding thriller with the heart and soul so often missing from lesser crime and suspense novels. I couldn't stop reading, yet I didn't want Audie's story to end. Robotham is an absolute master' Stephen King on Life or Death