E-text prepared by Stephen Hutcheson, Rod Crawford, Dave Morgan, and the Online Distributed Proofreading Team (http://www.pgdp.net) Note: Project Gutenberg also has an HTML version of this file which includes the original illustration. See 39018-h.htm or 39018-h.zip: (https://www.gutenberg.org/cache/epub/39018/pg39018-images.html) or (https://www.gutenberg.org/files/39018/39018-h.zip) MR. MARX'S SECRET by E. PHILLIPS OPPENHEIM Author of "Mr. Grex of Monte Carlo," "The Double Traitor," "The Illustrious Prince," etc. With frontispiece by F. Vaux Wilson Boston Little, Brown, and Company 1916 Published, January, 1916 Reprinted, January, 1916 (twice) February, 1916 Printers S. J. Parkhill & Co., Boston, U.S.A. CONTENTS. CHAPTER PAGE I.--News from the Pacific 11 II.--Mr. Francis 15 III.--The Murder at the Slate-Pits 18 IV.--My Mother's Warning 23 V.--Ravenor of Ravenor 27 VI.--A Doubtful Visitor 39 VII.--A Meeting and a Metamorphosis 43 VIII.--An Abode of Mystery 49 IX.--Mr. Marx 58 X.--Lady Silchester 65 XI.--The Cry in the Avenue 70 XII.--A Dark Corner in the Avenue 76 XIII.--The Cloud Between Us 81 XIV.--A Meeting in the Coffee-Room 85 XV.--A Tête-à-tête Dinner 89 XVI.--Miss Mabel Fay 93 XVII.--Behind the Scenes at the Torchester Theatre 98 XVIII.--At Midnight on the Moor 103 XIX.--A Strange Attack 111 XX.--The Monastery Among the Hills 115 XXI.--A Message from the Dead 124 XXII.--For Life 127 XXIII.--My Guardian 135 XXIV.--My First Dinner Party 138 XXV.--Mr. Marx's Warning 144 XXVI.--A Lost Photograph 148 XXVII.--Leonard de Cartienne 157 XXVIII.--"As Rome Does" 164