When a mysterious package is delivered to Robin Ellacott, she is horrified to discover that it contains a woman's severed leg. Her boss, private detective Cormoran Strike, is less surprised but no less alarmed. There are four people from his past who he thinks could be responsible--and Strike knows that any one of them is capable of sustained and unspeakable brutality.
With the police focusing on one of the suspects, Strike and Robin delve into the dark and twisted worlds of the other three men. But as more horrendous acts occur, time is running out for the two of them...

Robert Galbraith is a pseudonym for J.K. Rowling, bestselling author of the Harry Potter series and The Casual Vacancy. The previous six Strike novels, The Cuckoo's Calling, The Silkworm, Career of Evil, Lethal White, Troubled Blood and The Ink Black Heart topped the national and international bestseller lists and the series has been adapted for television, produced by Brontë Film and Television.