THE MYSTERY. In collaboration with Samuel Hopkins Adams With illustrations by Will Crawford. The disappearance of three successive crews from the stout ship "Laughing Lass" in mid-Pacific, is a mystery weird and inscrutable. In the solution, there is a story of the most exciting voyage that man ever undertook. Grosset & Dunlap, 526 West 26th St., New York LOUIS TRACY'S CAPTIVATING AND EXHILARATING ROMANCES May be had wherever books are sold. Ask for Grosset & Dunlap's list. CYNTHIA'S CHAUFFEUR. Illustrated by Howard Chandler Christy. A pretty American girl in London is touring in a car with a chauffeur whose identity puzzles her. An amusing mystery. THE STOWAWAY GIRL. Illustrated by Nesbitt Benson. A shipwreck, a lovely girl stowaway, a rascally captain, a fascinating officer, and thrilling adventures in South Seas. THE CAPTAIN OF THE KANSAS. Love and the salt sea, a helpless ship whirled into the hands of cannibals, desperate fighting and a tender romance. THE MESSAGE. Illustrated by Joseph Cummings Chase. A bit of parchment found in the figurehead of an old vessel tells of a buried treasure. A thrilling mystery develops. THE PILLAR OF LIGHT. The pillar thus designated was a lighthouse, and the author tells with exciting detail the terrible dilemma of its cut-off inhabitants. THE WHEEL O'FORTUNE. With illustrations by James Montgomery Flagg. The story deals with the finding of a papyrus containing the particulars of some of the treasures of the Queen of Sheba. A SON OF THE IMMORTALS. Illustrated by Howard Chandler Christy. A young American is proclaimed king of a little Balkan Kingdom, and a pretty Parisian art student is the power behind the throne. THE WINGS OF THE MORNING. A sort of Robinson Crusoe redivivus with modern settings and a very pretty love story added. The hero and heroine are the only survivors of a wreck, and have many thrilling adventures on their desert island. Ask for a complete free list of G. & D. Popular Copyrighted Fiction. Grosset & Dunlap, 526 West 26th St., New York STORIES OF WESTERN LIFE May be had wherever books are sold. Ask for Grosset & Dunlap's list. RIDERS OF THE PURPLE SAGE, By Zane Grey. Illustrated by Douglas Duer. In this picturesque romance of Utah of some forty years ago, we are permitted to see the unscrupulous methods employed by the invisible hand of the Mormon Church to break the will of those refusing to conform to its rule. FRIAR TUCK, By Robert Alexander Wason. Illustrated by Stanley L. Wood. Happy Hawkins tells us, in his humorous way, how Friar Tuck lived among the Cowboys, how he adjusted their quarrels and love affairs and how he fought with them and for them when occasion required. THE SKY PILOT, By Ralph Connor. Illustrated by Louis Rhead. There is no novel, dealing with the rough existence of cowboys, so charming in the telling, abounding as it does with the freshest and the truest pathos. THE EMIGRANT TRAIL, By Geraldine Bonner.