Three of them adrift on the narrowboat.
Mother, son, and wickedness.

Peggy Jenkins and her teenage son, Samson, live on a remote stretch of canal in the Midlands. She is a writer and he is a schoolboy. Together, they battle against the hardness and manipulation of the man they live with. To the outside world he is a husband and father. To them, he is a captor.

Their lives are tightly controlled; if any perceived threat appears, their mooring is moved further down the canal, further away from civilisation. Until the day when the power suddenly shifts, and nothing can be the same again.

The author of the 'master class in suspense' (Shari Lapena, Sunday Times bestselling author) The Last Thing to Burn returns with a high-tension thriller about a family's descent into darkness that is perfect for fans of Denis Lehane and Lisa Jewell.