Fred Yager

Fifteen-year-old Devon leaves school bullies and his parents' imminent divorce behind when the person, or being, responsible for what seems to be music from outer space arrives, with a strange instrument that can be used to heal or to destroy.

Inspector Mallett mystery - 6 Francis Pettigrew mystery - 5 Francis Pettigrew, on holiday on Exmoor, relives memories of finding a dead body as a child--and then he finds a dead body on the same spot, in very similar circumstances. When the body subsequently disappears and reappears, he tries simply to keep out of the whole business, but his old friend Inspector Mallet, now retired, gets him involved in solving the mystery.