All Is Discovered — Joanna Cannan

When a woman is found battered to death in a small village near the sea, Detective Inspector Savory is pleased to accept the assistance of Detective Superintendent Price of Scotland Yard, who is on holiday in the area. The dead woman, a refugee, has always kept herself to herself - but why was she murdered? Then a relative of another local resident is washed up dead on the beach - not drowned, but shot - and the two policemen have a real mystery on their hands...