The eighth Adam Dalgliesh mystery is set against the remote Norfolk coastline under the shadow of a nuclear power station, where a serial killer known as the Whistler is terrorising the neighbourhood.

P. D. James was a bestselling and internationally acclaimed crime writer. She was the creator of Adam Dalgliesh and Cordelia Gray, and their long and successful series of mysteries. Her works include Cover Her Face (1962), An Unsuitable Job for a Woman (1972), Innocent Blood (1980), Children of Men (1992), and the Jane Austen-inspired Death Comes to Pemberley (2011). James was born in Oxford in 1920. She won awards for crime writing in Britain, America, Italy and Scandinavia, including the Mystery Writers of America Grandmaster Award. She received honorary degrees from seven British universities, was awarded an OBE in 1983 and created a life peer in 1991. In 1997 she was elected President of the Society of Authors, and stood down from this role in 2013.