This volume includes 26 stories by masters of detective genre: THE AMATEUR BY RICHARD HARDING DAVIS THE NAMELESS MAN BY RODRIGUES OTTOLENGUI THE COUNTESS OF LOWNDES SQUARE BY E. F. BENSON THE BLACKMAILER OF PARK LANE BY E. F. BENSON THE PURLOINED LETTER BY EDGAR ALLAN POE THE BLACK HAND BY ARTHUR B. REEVE THE BITER BIT BY WILKIE COLLINS MISSING: PAGE THIRTEEN BY ANNA KATHERINE GREEN THE ROPE OF FEAR BY THOMAS W. HANSHEW THE MONTEZUMA EMERALD BY RODRIGUES OTTOLENGUI A SINGULAR ABDUCTION BY RODRIGUES OTTOLENGUI THE AZTEC OPAL BY RODRIGUES OTTOLENGUI THE DUPLICATE HARLEQUIN BY RODRIGUES OTTOLENGUI THE PEARLS OF ISIS BY RODRIGUES OTTOLENGUI A PROMISSORY NOTE BY RODRIGUES OTTOLENGUI THE AFFAIR OF THE CORRIDOR EXPRESS BY VICTOR L. WHITECHURCH A WARNING IN RED BY VICTOR L. WHITECHURCH THE ABSENCE OF MR. GLASS BY GILBERT K. CHESTERTON THE KIMBERLEY FUGITIVE BY CLIFFORD ASHDOWN THE COIN OF DIONYSIUS BY ERNEST BRAMAH THE KNIGHT'S CROSS SIGNAL PROBLEM BY ERNEST BRAMAH THE TRAGEDY AT BROOKBEND COTTAGE BY ERNEST BRAMAH THE LAST EXPLOIT OF HARRY THE ACTOR BY ERNEST BRAMAH THE BUNCH OF VIOLETS BY ERNEST BRAMAH OSCAR THE DETECTIVE BY HARLAN PAGE HALSEY AKA OLD SLEUTH THE PONSONBY DIAMONDS BY L.T. MEADE AND CLIFFORD HALIFAX