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[Illustration: AN UNEXPECTED APPEARANCE.]




                                  THE
                                MYSTERY
                                   OF
                           LOST RIVER CANYON


                                   BY

                            HARRY CASTLEMON

   AUTHOR OF “ROCKY MOUNTAIN SERIES,” “GUNBOAT SERIES,” “BOY TRAPPER
                          SERIES,” ETC., ETC.


                              PHILADELPHIA
                         HENRY T. COATES & CO.




                            COPYRIGHT, 1896,
                                   BY
                         HENRY T. COATES & CO.




                               CONTENTS.


              CHAPTER                                 PAGE

                      PROLOGUE,                   