The Sleeping and the Dead by Ann Cleeves

Detective Peter Porteous is called to Cranwell Lake where the body of a teenager has been discovered.

After combing through missing persons files, he comes to the conclusion that the corpse is Michael Grey, an enigmatic and secretive young man who was reported missing by his foster parents in 1972.

The news report that a body has been found leaves prison officer Hannah Morton in shock. Michael had been her boyfriend, and she had been with him the night he disappeared. And now the discovery is bringing back dreaded and long buried memories from her past…

The Sleeping and the Dead is a tense and compelling psychological thriller from superstar crime writer Ann Cleeves, author and creator of three astounding TV series: Shetland, Vera, and The Long Call.