While the Clock Ticked
Franklin W. Dixon
The Hardy Boys Mystery Stories (11)
The Mystery of Cabin Island
The Hardy Boys Mystery Stories (8)
The Secret of the Caves
The Hardy Boys Mystery Stories (7)
Hunting for Hidden Gold
The Hardy Boys Mystery Stories (5)
The Shore Road Mystery
The Hardy Boys Mystery Stories (6)
The Missing Chums
The Hardy Boys Mystery Stories (4)
The Tower Treasure
The Hardy Boys Mystery Stories (1)
The House on the Cliff
The Hardy Boys Mystery Stories (2)