This Emblem Leads You
to Adventure! LOOK FOR IT ON
THE COVERS OF THE EXCITING
HARDY BOYS
MYSTERY STORIES by F. W. DixonAll boys from 10 to 14 who like lively adventure stories. packed with mystery and action, will want to read every one of the Hardy Boys stories listed here.  Sons of a famous American detective, the Hardy boys help solve many thrilling cases after school hours and during vacations, as they follow up the clues they unearth in their quest to bring criminals to justice.
How Many of These Books Do You Own?    
        THE TOWER TREASURE
        THE HOUSE ON THE CLIFF
        THE SECRET OF THE OLD MILL
        THE MISSING CHUMS
        HUNTING FOR HIDDEN GOLD
        THE SHORE ROAD MYSTERY
        THE SECRET OF THE CAVES
        THE MYSTERY OF CABIN ISLAND
        THE GREAT AIRPORT MYSTERY
        WHAT HAPPENED AT MIDNIGHT
        WHILE THE CLOCK TICKED
        FOOTPRINTS UNDER THE WINDOW
        THE MARK ON THE DOOR
        THE HIDDEN HARBOR MYSTERY
        THE SINISTER SIGNPOST
        A FIGURE IN HIDING
        THE SECRET WARNING
        THE TWISTED CLAW
        THE DISAPPEARING FLOOR
        MYSTERY OF THE FLYING EXPRESS
        THE CLUE OF THE BROKEN BLADE
        THE FLICKERING TORCH MYSTERY
    
    
        THE MELTED COINS
        THE SHORT-WAVE MYSTERY
        THE SECRET PANEL
        THE PHANTOM FREIGHTER
        THE SECRET OF SKULL MOUNTAIN
        THE SIGN OF THE CROOKED ARROW
        THE SECRET OF THE LOST TUNNEL
        THE WAILING SIREN MYSTERY
        THE SECRET OF WILDCAT SWAMP
        THE CRISSCROSS SHADOW
        THE YELLOW FEATHER MYSTERY
        THE HOODED HAWK MYSTERY
        THE CLUE IN THE EMBERS
        THE SECRET OF PIRATES' HILL
        THE GHOST AT SKELETON ROCK
        THE MYSTERY AT DEVIL'S PAW
        THE MYSTERY OF THE CHINESE JUNK
        MYSTERY OF THE DESERT GIANT
        THE CLUE OF THE SCREECHING OWL
        THE VIKING SYMBOL MYSTERY
        THE MYSTERY OF THE AZTEC WARRIOR
        HARDY BOYS DETECTIVE HANDBOOK
    
 THE HAUNTED FORT
GROSSET & DUNLAP 
Publishers NEW YORK 10, N.Y.