Inspector French and the Sea Mystery

When a dead body is found at sea, the case can only be solved by the astute Inspector French, and his most discerning readers, in this Golden Age mystery.
 
A mysterious shipping crate is hauled ashore off the coast of Burry Port in South Wales by two fishermen, who find a brutally murdered, decaying corpse inside. Stumped by the lack of clues, the local police call in Inspector French of Scotland...