Fishing in the Burry Inlet on the south coast of Wales, Mr. Morgan and his son haul up a crate containing a murdered man. Inspector French of Scotland Yard works out by experiment where the crate went into the sea, and follows the trail to a firm called Berlyn and Pyke, a railway despatch and two men lost on Dartmoor.
A classic Golden Age puzzle of timetables and patient detection by the master of the unbreakable alibi. Download the free EPUB.