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The X Bar X boys at the round-up • 第33章
On the Trail of Clues and Criminals
Illustrated. Every Volume Complete in Itself.
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