Frank and Joe Hardy are sons of a celebrated detective. Often the boys help him in his investigations. In their spare hours and during vacations they follow up clues “on their own hook.” These activities lead them into many strange adventures and dangerous situations. Yet their efforts are usually successful in tracking down criminals. These stories are packed with action, adventure and mystery.

THE HARDY BOYS STORIES

By FRANKLIN W. DIXON



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

A FIGURE IN HIDING