. . . . . . "The Riddle of the Sands: A Record of Secret Service" . . . . . . . "''The Riddle of the Sands: A Record of Secret Service''" . . . . . "novel of the same name" . . . . . "The Riddle of the Sands" . . . . . . . "The Shadow in the Sands" . . "3569143" . . "The Riddle of the Sands" . . . . . . . . . .