A collection of 16 short stories, all but two involving Gervase Fen, and most with the addition of Detective-Inspector Humbleby, of Scotland Yard. They were intended as fair-play mysteries rather than atmospheric writing, and so are fairly brief and deal almost entirely with the puzzle aspect of detection. Titles are: Beware of the Trains; Humbleby Agonistes; The Drowning of Edgar Foley; "Lacrimae Rerum"; Within the Gates; Abhorrèd Shears; The Little Room; Express Delivery; A Pot of Paint; The Quick Brown Fox; Black for a Funeral; The Name on the Window; The Golden Mean; Otherwhere; The Evidence for the Crown; Deadlock.