THE RIDDLE OF THE MYSTERIOUS LIGHT [Illustration: "_Mr. Narkom saw Cleek run to the tower's foot ... and then, almost immediately, he saw him throw up both hands and stagger backward._"] THE SCOTLAND YARD MYSTERY LIBRARY THE RIDDLE OF THE MYSTERIOUS LIGHT BY MARY E. and THOMAS W. HANSHEW McKINLAY, STONE & MACKENZIE NEW YORK COPYRIGHT, 1920, 1921, BY DOUBLEDAY, PAGE & COMPANY CONTENTS CHAPTER PAGE I. Trapped by the Apaches 3 II. A Kiss for a Life 12 III. The Haunted Village 22 IV. Weird Church Bells of the Night 30 V. The Private Affairs of a Duke 43 VI. The Ghost in the Church Belfry 50 VII. A Garden of Transplanted Flowers 62 VIII. The Murder of Captain Sandringham 73 IX. A Faintly Familiar Face 78 X. A Walk in the Garden 86 XI. Clues from a Dead Body 94 XII. A Jangle of Pealing Bells 101 XIII. The Mysterious Light 107 XIV. "George Headland" Keeps an Appointment 113 XV. The Laying of the Valehampton "Ghost" 121 XVI. Cleek Explains 128 XVII. The Mystery of the "Rose of Fire" 137 XVIII. Murder at Manor Lodge 145 XIX. The Winged Messenger of Death 154 XX. The Stolen Formulas 166 XXI. Countess Maravitz Entertains 190 XXII. An Interrupted Holiday 202 XXIII. A Divided Legacy 210 XXIV. "The Fire That Slays in the Dark" 218 XXV. The Priceless Statue That Vanished 229 XXVI. Flecks of White Powder 237 XXVII. The Ruse of the Sprained Wrist 246 XXVIII. The Mystery of the "Rope of Fear" 256 XXIX. The Mysterious Death of Elton Carlyle 287 XXX. The Safe with the Time-Lock 297 XXXI. In the Den of the Apaches 306 XXXII. The Passing of Cleek 320 CHAPTER I TRAPPED BY THE APACHES