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The Tower Treasure

Hardy Boys Series

Book 1

Franklin W. Dixon Author
(1927)

The House on the Cliff

Hardy Boys Series

Book 2

Franklin W. Dixon Author
(1927)

Hunting for Hidden Gold

Hardy Boys Series

Book 5

Franklin W. Dixon Author
(1928)

The Secret of the Old Mill

Hardy Boys Series

Book 3

Franklin W. Dixon Author
(1927)

The Missing Chums

Hardy Boys Series

Book 4

Franklin W. Dixon Author
(1930)

While the Clock Ticked

Hardy Boys Series

Book 11

Franklin W. Dixon Author
(1932)

The Disappearing Floor

Hardy Boys Series

Book 19

Franklin W. Dixon Author
(1940)

The Shore Road Mystery

Hardy Boys Series

Book 6

Franklin W. Dixon Author
(1928)

The Arctic Patrol Mystery

Hardy Boys Series

Book 48

Franklin W. Dixon Author
(1969)

Footprints Under the Window

Hardy Boys Series

Book 12

Franklin W. Dixon Author
(1933)

The Great Airport Mystery

Hardy Boys Series

Book 9

Franklin W. Dixon Author
(1930)

The Secret of the Caves

Hardy Boys Series

Book 7

Franklin W. Dixon Author
(1929)

The Secret Agent on Flight 101

Hardy Boys Series

Book 46

Franklin W. Dixon Author
(1967)

The Mark on the Door

Hardy Boys Series

Book 13

Franklin W. Dixon Author
(1934)

A Figure in Hiding

Hardy Boys Series

Book 16

Franklin W. Dixon Author
(1937)

What Happened at Midnight

Hardy Boys Series

Book 10

Franklin W. Dixon Author
(1931)

The Hidden Harbor Mystery

Hardy Boys Series

Book 14

Franklin W. Dixon Author
(1935)

The Secret of Pirates' Hill

Hardy Boys Series

Book 36

Franklin W. Dixon Author
(1957)

The Mystery of Cabin Island

Hardy Boys Series

Book 8

Franklin W. Dixon Author
(1929)

The Clue of the Broken Blade

Hardy Boys Series

Book 21

Franklin W. Dixon Author
(1942)

The Haunted Fort

Hardy Boys Series

Book 44

Franklin W. Dixon Author
(1964)

The Secret Warning

Hardy Boys Series

Book 17

Franklin W. Dixon Author
(1938)

The Sinister Signpost

Hardy Boys Series

Book 15

Franklin W. Dixon Author
(1936)

Danger on Vampire Trail

Hardy Boys Series

Book 50

Franklin W. Dixon Author
(1971)

The Melted Coins

Hardy Boys Series

Book 23

Franklin W. Dixon Author
(1944)

The Twisted Claw

Hardy Boys Series

Book 18

Franklin W. Dixon Author
(1939)

Mystery of the Flying Express

Hardy Boys Series

Book 20

Franklin W. Dixon Author
(1941)

The Bombay Boomerang

Hardy Boys Series

Book 49

Franklin W. Dixon Author
(1970)

The Ghost at Skeleton Rock

Hardy Boys Series

Book 37

Franklin W. Dixon Author
(1958)

The Clue of the Screeching Owl

Hardy Boys Series

Book 41

Franklin W. Dixon Author
(1962)

The Clue in the Embers

Hardy Boys Series

Book 35

Franklin W. Dixon Author
(1956)

The Crisscross Shadow

Hardy Boys Series

Book 32

Franklin W. Dixon Author
(1953)

The Firebird Rocket

Hardy Boys Series

Book 57

Franklin W. Dixon Author
(1978)

The Short-Wave Mystery

Hardy Boys Series

Book 24

Franklin W. Dixon Author
(1945)

The Jungle Pyramid

Hardy Boys Series

Book 56

Franklin W. Dixon Author
(1976)

The Mystery of the Spiral Bridge

Hardy Boys Series

Book 45

Franklin W. Dixon Author
(1965)

The Clue of the Hissing Serpent

Hardy Boys Series

Book 53

Franklin W. Dixon Author
(1974)

The Secret Panel

Hardy Boys Series

Book 25

Franklin W. Dixon Author
(1946)

The Flickering Torch Mystery

Hardy Boys Series

Book 22

Franklin W. Dixon Author
(1943)

The Secret of Skull Mountain

Hardy Boys Series

Book 27

Franklin W. Dixon Author
(1948)

The Sting of the Scorpion

Hardy Boys Series

Book 58

Franklin W. Dixon Author
(1978)

The Mystery of the Chinese Junk

Hardy Boys Series

Book 39

Franklin W. Dixon Author
(1959)

The Viking Symbol Mystery

Hardy Boys Series

Book 42

Franklin W. Dixon Author
(1962)

The Secret of the Lost Tunnel

Hardy Boys Series

Book 29

Franklin W. Dixon Author
(1950)

The Phantom Freighter

Hardy Boys Series

Book 26

Franklin W. Dixon Author
(1947)

Mystery of the Desert Giant

Hardy Boys Series

Book 40

Franklin W. Dixon Author
(1960)

The Wailing Siren Mystery

Hardy Boys Series

Book 30

Franklin W. Dixon Author
(1951)

The Hooded Hawk Mystery

Hardy Boys Series

Book 34

Franklin W. Dixon Author
(1955)