Introductory material

I Sir John Dene Receives His Orders II The Strange Case of Mr. Challoner III Malcolm Sage's Mysterious Movements IV The Surrey Cattle-Maiming Mystery V Inspector Wensdale Is Surprised VI The Stolen Admiralty Memorandum VII The Outrage at the Garage VIII Gladys Norman Dines with Thompson IX The Holding Up of Lady Glanedale X A Lesson in Deduction XI The McMurray Mystery XII The Marmalade Clue XIII The Gylston Slander XIV Malcolm Sage Plays Patience XV The Missing Heavyweight XVI The Great Fight at the Olympia XVII Lady Dene Calls on Malcolm Sage