This work contains the following stories:
Max Pemberton: 'The Ripening Rubies'
Arthur Morrison: 'The Case of Laker, Absconded'
Guy Boothby: 'The Dutchess of Wiltshire's Diamonds'
Arthur Morrison: 'The Affair of the "Avalanche Bicycle and Tyre Co. Ltd"'
Clifford Ashdown: 'The Assyrian Rejuvenator'
L. T. Meade and Robert Eustace: 'Madame Sara'
Clifford Ashdown: 'The Submarine Boat'
William Le Queux: 'The Secret of the Fox Hunter'
Baroness Orczy: 'The Mysterious Death on the Underground Railway'
R. Austin Freeman: 'The Moabite Cipher'
Baroness Orczy: 'The Woman in the Big Hat'
William Hope Hodgson: 'The Horse of the Invisible'
Ernest Bramah: 'The Game Played in the Dark'