
The Secret of the Caves (Hardy Boys, #7)
$4.39 - $32.42

The Tower Treasure
$5.09 - $207.89

The House on the Cliff
$5.49 - $34.99

The Mystery of Cabin Island (Hardy Boys, #8)
$4.39 - $34.99

The Secret of the Old Mill
$5.29 - $31.99

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

The Shore Road Mystery
$4.79 - $33.99

The Great Airport Mystery (Hardy Boys, #9)
$5.09 - $32.95

The Missing Chums (Hardy Boys, #4)
$4.79 - $34.99

What Happened at Midnight
$4.69 - $15.29

While the Clock Ticked
$4.39 - $18.89

Footprints Under the Window
$4.39 - $49.39

The Tower Treasure / The House on the Cliff (Hardy Boys, #1-2)
$5.39 - $13.93

The Mark on the Door
$4.69 - $14.69

The Disappearing Floor
$4.99 - $14.79

The Hidden Harbor Mystery (The Hardy Boys, #14)
$5.29 - $11.69

The Clue of the Screeching Owl (Hardy Boys, #41)
$4.99 - $10.50

The Secret of Pirates' Hill (Hardy Boys, #36)
$5.39 - $26.49

A Figure in Hiding (Hardy Boys, #16)
$4.49 - $28.79

The Secret Warning
$5.79 - $10.69

The Sinister Signpost (Hardy Boys, #15)
$4.19 - $99.19

Secret Agent on Flight 101
$4.79 - $11.39

The Secret of Wildcat Swamp
$5.29 - $14.49

The Mystery of the Chinese Junk
$5.39 - $10.26

The Crisscross Shadow (Hardy Boys, #32)
$5.29 - $10.89

The Ghost at Skeleton Rock
$5.09 - $12.19

Mystery of the Flying Express (Hardy Boys, #20)
$4.49 - $18.19

Hardy Boys Boxed Set 1-6
$6.19 - $36.62

The Secret Panel (Hardy Boys, #25)
$4.79 - $32.95

The Mystery of the Spiral Bridge
$4.29 - $10.26