THE TOP 10 BESTSELLER, an addictively gripping psychological thriller by Alison Stockham

You want your sister to have all her heart desires.

But - what if she wants your children?

Maggie has everything her sister Rose always wanted. A handsome husband and two adorable children, Emily and Elliot.

But what Rose doesn’t see is that Maggie is struggling. Every day is a fog of sleep loss and mess made by two tiny children. Left alone in her distress by husband Stephen, Maggie drifts ever closer to the edge.

When Maggie finally cracks, walking out one day and not returning, Rose is right there to step into the breach . . .

You trust your sister to look after your children. But should you?

A compelling thriller to keep you guessing, perfect for fans of Liane Moriarty and Celeste Ng.

‘It begins with a visceral shock and evolves through unexpected twists and turns to a deeply felt and satisfying conclusion’ Greg Mosse, author of The Coming Darkness

'This was a beautifully written debut that handles a difficult subject matter with a delicacy that makes me excited to read whatever Alison Stockham writes next' Stacy Thomas, author of The Revels

‘This book comes with a killer hook… Sibling relationships, post-natal depression, marriages with cracks that turn into fissures and the nature of friendship are all explored via a pacy storyline’ Jo Leevers, author of Tell Me How It Ends

'Stormed through The Cuckoo Sister by Alison Stockham... A fascinating premise and she handles it admirably, with nuance and compassion' Laura Pearson, author of I Wanted You To Know, Missing Pieces & Nobody’s Wife

'Beautifully poignant and utterly compelling' Alex Stone, author of The Perfect Daughter and The Other Girlfriend

'An emotional and relatable story' Louise Douglas, author of The Room in the Attic and The Lost Notebook

'Such a clever and engaging book with a late twist that I absolutely did not predict' Beth Miller, author of The Missing Letters of Mrs Bright & The Woman Who Came Back To Life

'A brilliant concept delivered with real emotional depth and clout. I felt for each and every character in this story of family, guilt and deepest desires' Gytha Lodge, author of Little Sister, Lie Beside Me, Watching From The Dark & She Lies in Wait