The Secret of the Caves (Hardy Boys, #7)
$4.19 - $10.66
The Tower Treasure
$4.59 - $30.59
The Secret of the Old Mill
$4.79 - $27.99
The House on the Cliff
$4.19 - $23.19
The Mystery of Cabin Island (Hardy Boys, #8)
$4.79 - $28.34
The Great Airport Mystery (Hardy Boys, #9)
$4.69 - $29.29
Hunting for Hidden Gold (Hardy Boys, #5)
$4.79 - $93.79
The Shore Road Mystery
$4.69 - $35.79
The Missing Chums (Hardy Boys, #4)
$4.99 - $22.38
What Happened at Midnight
$5.19 - $18.79
While the Clock Ticked
$4.79 - $34.29
The Disappearing Floor
$4.99 - $23.99
Footprints Under the Window
$4.69 - $26.89
The Hidden Harbor Mystery (The Hardy Boys, #14)
$4.99 - $17.19
The Tower Treasure / The House on the Cliff (Hardy Boys, #1-2)
$4.19 - $13.84
The Mark on the Door
$5.19 - $80.59
The Secret Warning
$5.09 - $14.89
The Secret of Pirates' Hill (Hardy Boys, #36)
$4.29 - $15.29
A Figure in Hiding (Hardy Boys, #16)
$4.39 - $18.09
The Sinister Signpost (Hardy Boys, #15)
$4.99 - $263.99
The Secret of Wildcat Swamp
$4.49 - $10.66
The Mystery of the Spiral Bridge
$5.79 - $10.66
The Mystery of the Chinese Junk
$5.09 - $9.29
The Clue in the Embers
$5.29 - $19.09
The Clue of the Screeching Owl (Hardy Boys, #41)
$4.49 - $9.61
The Twisted Claw
$4.69 - $28.79
The Crisscross Shadow (Hardy Boys, #32)
$4.99 - $10.66
The Hooded Hawk Mystery (Hardy Boys, #34)
$5.39 - $21.99
The Ghost at Skeleton Rock
$3.79 - $30.09
The Viking Symbol Mystery (Hardy Boys, #42)
$5.39 - $15.19
