The Tower Treasure
$3.59 - $20.84
The Secret of the Caves (Hardy Boys, #7)
$4.29 - $12.59
The Secret of the Old Mill
$3.79 - $22.66
The House on the Cliff
$3.59 - $41.79
The Mystery of Cabin Island (Hardy Boys, #8)
$3.59 - $71.59
What Happened at Midnight
$4.49 - $13.59
Hunting for Hidden Gold (Hardy Boys, #5)
$3.69 - $12.14
The Shore Road Mystery
$4.69 - $32.09
The Great Airport Mystery (Hardy Boys, #9)
$3.59 - $20.39
The Missing Chums (Hardy Boys, #4)
$4.09 - $23.07
The Disappearing Floor
$4.49 - $74.29
While the Clock Ticked
$3.89 - $36.19
Footprints Under the Window
$3.59 - $15.19
The Secret Warning
$3.89 - $16.13
The Hidden Harbor Mystery (The Hardy Boys, #14)
$4.29 - $14.49
The Mark on the Door
$3.89 - $10.80
The Crisscross Shadow (Hardy Boys, #32)
$4.59 - $9.94
A Figure in Hiding (Hardy Boys, #16)
$3.89 - $9.99
The Sinister Signpost (Hardy Boys, #15)
$3.59 - $10.80
The Secret of Wildcat Swamp
$4.59 - $15.09
Arctic Patrol Mystery
$3.89 - $15.19
The Haunted Fort (Hardy Boys, #44)
$3.89 - $27.19
The Mystery of the Spiral Bridge
$4.79 - $16.19
The Hooded Hawk Mystery (Hardy Boys, #34)
$3.89 - $9.94
The Twisted Claw
$3.79 - $30.29
The Yellow Feather Mystery
$4.09 - $21.89
The Clue in the Embers
$3.89 - $10.72
The Ghost at Skeleton Rock
$4.19 - $39.19
The Secret of Pirates' Hill (Hardy Boys, #36)
$4.19 - $9.94
The Viking Symbol Mystery (Hardy Boys, #42)
$4.89 - $27.49
