
The Secret of the Caves (Hardy Boys, #7)
$4.59 - $32.42

The Tower Treasure
$5.29 - $332.99

The House on the Cliff
$5.49 - $34.99

The Mystery of Cabin Island (Hardy Boys, #8)
$4.59 - $34.99

The Secret of the Old Mill
$4.69 - $31.99

The Shore Road Mystery
$5.59 - $33.99

Hunting for Hidden Gold (Hardy Boys, #5)
$5.09 - $38.65

The Great Airport Mystery (Hardy Boys, #9)
$5.59 - $32.95

What Happened at Midnight
$4.99 - $15.89

The Missing Chums (Hardy Boys, #4)
$5.09 - $34.99

While the Clock Ticked
$4.59 - $22.49

Footprints Under the Window
$4.59 - $47.09

The Tower Treasure / The House on the Cliff (Hardy Boys, #1-2)
$5.49 - $13.93

The Mark on the Door
$4.99 - $42.79

The Disappearing Floor
$5.09 - $53.39

The Hidden Harbor Mystery (The Hardy Boys, #14)
$5.69 - $79.19

The Clue of the Screeching Owl (Hardy Boys, #41)
$5.89 - $10.50

The Secret of Pirates' Hill (Hardy Boys, #36)
$5.69 - $13.69

A Figure in Hiding (Hardy Boys, #16)
$5.09 - $15.17

The Secret Warning
$5.69 - $10.79

The Sinister Signpost (Hardy Boys, #15)
$4.49 - $59.29

Secret Agent on Flight 101
$5.69 - $11.19

The Secret of Wildcat Swamp
$5.29 - $13.29

The Mystery of the Chinese Junk
$4.79 - $12.09

The Crisscross Shadow (Hardy Boys, #32)
$5.49 - $10.85

The Ghost at Skeleton Rock
$5.79 - $10.59

Mystery of the Flying Express (Hardy Boys, #20)
$4.99 - $34.59

The Secret Panel (Hardy Boys, #25)
$6.09 - $10.50

Hardy Boys Boxed Set 1-6
$6.19 - $42.32

The Mystery at Devil's Paw
$5.09 - $26.49