[Dust cover Illustration] [Hard cover Illustration] [Illustration: HANLEIGH WAS QUITE UNCONSCIOUS THAT HE WAS BEING WATCHED.] =THE= =HARDY= =BOYS= THE MYSTERY OF CABIN ISLAND BY FRANKLIN W. DIXON Author of The Hardy Boys: The Tower Treasure The Hardy Boys: The Secret of the Caves The Ted Scott Flying Stories ILLUSTRATED BY Walter S. Rogers NEW YORK GROSSET & DUNLAP PUBLISHERS Made in the United States of America BOOKS FOR BOYS By FRANKLIN W. DIXON 12mo. Cloth. Illustrated. THE HARDY BOYS MYSTERY STORIES THE HARDY BOYS: THE TOWER TREASURE THE HARDY BOYS: THE HOUSE ON THE CLIFF THE HARDY BOYS: THE SECRET OF THE OLD MILL THE HARDY BOYS: THE MISSING CHUMS THE HARDY BOYS: HUNTING FOR HIDDEN GOLD THE HARDY BOYS: THE SHORE ROAD MYSTERY THE HARDY BOYS: THE SECRET OF THE CAVES THE HARDY BOYS: THE MYSTERY OF CABIN ISLAND THE TED SCOTT FLYING STORIES OVER THE OCEAN TO PARIS RESCUED IN THE CLOUDS OVER THE ROCKIES WITH THE AIR MAIL FIRST STOP HONOLULU THE SEARCH FOR THE LOST FLYERS SOUTH OF THE RIO GRANDE ACROSS THE PACIFIC THE LONE EAGLE OF THE BORDER FLYING AGAINST TIME OVER THE JUNGLE TRAILS Copyright, 1929, by GROSSET & DUNLAP, INC. ———— The Hardy Boys: The Mystery of Cabin Island CONTENTS