The ripening rubies / by M. Pemberton -- The case of Laker, absconded / by A. Morrison -- The Duchess of Wiltshire's diamonds / by G. Boothby -- The affair of the Avalanche Bicyle and Tyre Co. , ltd. / by A. Morrison -- The Assyrian rejuvenator / by C. Ashdown -- Madame Sara / by L. T. Meade and R. Eustace -- The submarine boat / by C. Ashdown -- The secret of the fox hunter / by W. Le Queux -- The mysterious death on the underground railway / by Baroness Orczy -- The Moabite cipher / by R. Austin Freeman -- The woman in the big hat / by Baroness Orczy -- The horse of the invisible / by W. H. Hodgson -- The game played in the dark / by E. Bramah.