Inspector Torquil McKinnon had been devastated when he returned to the island to discover that Constable Ewan McPhee, his best friend, was missing, presumed drowned. Then, when a crofter died in a climbing accident, a dog was poisoned and a body was discovered face down in a rock pool, he began to suspect a killer was on the loose. Could all this somehow be connected with the controversial building of wind towers which enraged the local crofting community and worried the conservation group? It would take all Torquil's skills to unravel the mystery and put everyone's mind at rest.