The Sea Mystery

The Sea Mystery is a 1928 detective novel by Freeman Wills Crofts. It is the fourth in a series of novels featuring Inspector French of Scotland Yard. As with a number of his works Crofts creates a puzzling mystery which French is then able to solve using a Tide table and Bradshaw's Guide to the railways. The plot has some similarities with his debut novel The Cask (1920).

Synopsis
French of Scotland Yard is called in when a fisherman discovers a crate containing a battered body on the cost of South Wales. His investigations eventually take him to Devon.