114 books in series

The Hardy Boys

The Hardy Boys is a 114-book series with 114 primary works first released in 1920 with contributions by Franklin W. Dixon, Jerrold Mundis, and Leslie H. Morrill.

#1
The Tower Treasure

#1 of 114 in The Hardy Boys

1927 • 39 Readers • 214 pages • 3.5

#2
The House on the Cliff

#2 of 114 in The Hardy Boys

1927 • 19 Readers • 138 pages • 3.5

#3
Cover 7

The Secret of the Old Mill

#3 of 114 in The Hardy Boys

1927 • 3 Readers • 3

#4
The Missing Chums

#4 of 114 in The Hardy Boys

1928 • 8 Readers • 192 pages • 3

#5
Hunting for hidden gold

#5 of 114 in The Hardy Boys

1920 • 9 Readers • 194 pages • 3.7

#6
The Shore Road Mystery

#6 of 114 in The Hardy Boys

1928 • 9 Readers • 178 pages • 3

#7
The Secret of the Caves

#7 of 114 in The Hardy Boys

1929 • 4 Readers • 175 pages • 3

#8
Mystery of Cabin Island

#8 of 114 in The Hardy Boys

1929 • 5 Readers • 160 pages • 3

#9
The great airport mystery

#9 of 114 in The Hardy Boys

1930 • 6 Readers • 158 pages • 3

#10
What Happened at Midnight

#10 of 114 in The Hardy Boys

1931 • 9 Readers • 158 pages • 3.5

#11
While the Clock Ticked

#11 of 114 in The Hardy Boys

1932 • 8 Readers • 174 pages • 3.6

#12
Footprints under the window

#12 of 114 in The Hardy Boys

1933 • 4 Readers • 157 pages • 3

#13
The Mark on the Door

#13 of 114 in The Hardy Boys

1934 • 4 Readers • 192 pages • 3

#14
The Hidden Harbor Mystery

#14 of 114 in The Hardy Boys

1935 • 5 Readers • 3

#15
The Sinister Sign Post

#15 of 114 in The Hardy Boys

1936 • 5 Readers • 175 pages • 3.3

#16
A Figure in Hiding (Hardy Boys, #16)

#16 of 114 in The Hardy Boys

1937 • 4 Readers • 228 pages • 3

#17
The Secret Warning

#17 of 114 in The Hardy Boys

1938 • 5 Readers • 192 pages • 3

#18
The Twisted Claw

#18 of 114 in The Hardy Boys

1939 • 9 Readers • 159 pages • 3.7

#19
The mystery of the disappearing floor.

#19 of 114 in The Hardy Boys

1940 • 8 Readers • 159 pages • 3.4

#20
Mystery of the Flying Express

#20 of 114 in The Hardy Boys

1941 • 5 Readers • 193 pages • 3

#21
The clue of the broken blade

#21 of 114 in The Hardy Boys

1942 • 5 Readers • 192 pages • 3

#22
The flickering torch mystery

#22 of 114 in The Hardy Boys

1943 • 6 Readers • 160 pages • 3.3

#24
The Short-Wave Mystery

#24 of 114 in The Hardy Boys

1945 • 4 Readers • 192 pages • 3

#25
The Secret Panel

#25 of 114 in The Hardy Boys

1946 • 7 Readers • 178 pages • 3.3

#26
The Phantom Freighter

#26 of 114 in The Hardy Boys

1947 • 4 Readers • 181 pages • 3

#27
The Secret of Skull Mountain

#27 of 114 in The Hardy Boys

1948 • 5 Readers • 192 pages • 3

#28
The sign of the crooked arrow

#28 of 114 in The Hardy Boys

1949 • 4 Readers • 160 pages • 3

#30
The Wailing Siren Mystery

#30 of 114 in The Hardy Boys

1951 • 4 Readers • 177 pages • 3

#31
The Secret of Wildcat Swamp

#31 of 114 in The Hardy Boys

1952 • 5 Readers • 160 pages • 3

#32
The Crisscross Shadow

#32 of 114 in The Hardy Boys

1953 • 5 Readers • 156 pages • 3.3

#33
The Yellow Feather Mystery

#33 of 114 in The Hardy Boys

1953 • 5 Readers • 181 pages • 3

#35
The Clue in the Embers

#35 of 114 in The Hardy Boys

1955 • 5 Readers • 214 pages • 3

#36
The Secret of Pirates' Hill

#36 of 114 in The Hardy Boys

1956 • 6 Readers • 178 pages • 3.3

#37
The Ghost at Skeleton Rock

#37 of 114 in The Hardy Boys

1957 • 5 Readers • 177 pages • 3.3

#38
Mystery at Devil's Paw

#38 of 114 in The Hardy Boys

1959 • 4 Readers • 193 pages • 3

#39
The mystery of the Chinese junk

#39 of 114 in The Hardy Boys

1959 • 4 Readers • 160 pages • 3

#40
Mystery of the Desert Giant

#40 of 114 in The Hardy Boys

1960 • 6 Readers • 160 pages • 3.5

#42
The Viking Symbol Mystery

#42 of 114 in The Hardy Boys

1962 • 4 Readers • 192 pages • 3

#43
The Mystery of the Aztec Warrior

#43 of 114 in The Hardy Boys

1964 • 6 Readers • 192 pages • 3.7

#45
The mystery of the spiral bridge

#45 of 114 in The Hardy Boys

1965 • 4 Readers • 160 pages • 3

#46
The hooded hawk mystery

#46 of 114 in The Hardy Boys

1967 • 5 Readers • 320 pages • 3

#46
The secret agent on Flight 101

#46 of 114 in The Hardy Boys

1967 • 5 Readers • 158 pages • 2.7

#47
Mystery of the Whale Tattoo

#47 of 114 in The Hardy Boys

1967 • 4 Readers • 192 pages • 3

#48
The Arctic patrol mystery.

#48 of 114 in The Hardy Boys

1969 • 5 Readers • 159 pages • 3.3

#49
The Bombay Boomerang

#49 of 114 in The Hardy Boys

1970 • 3 Readers • 192 pages • 3

#50
Danger on Vampire Trail

#50 of 114 in The Hardy Boys

1971 • 4 Readers • 192 pages • 3.3

#51
Masked Monkey

#51 of 114 in The Hardy Boys

1972 • 4 Readers • 153 pages • 3

#52
The Shattered Helmet

#52 of 114 in The Hardy Boys

1973 • 5 Readers • 180 pages • 3.5

#53
The Clue of the Hissing Serpent

#53 of 114 in The Hardy Boys

1974 • 4 Readers • 192 pages • 3

#54
The Mysterious Caravan

#54 of 114 in The Hardy Boys

1975 • 5 Readers • 193 pages • 3.3

#55
The Witchmaster's Key

#55 of 114 in The Hardy Boys

1975 • 3 Readers • 192 pages • 3

#56
The Jungle Pyramid

#56 of 114 in The Hardy Boys

1976 • 3 Readers • 180 pages • 3

#57
The Firebird Rocket

#57 of 114 in The Hardy Boys

1978 • 5 Readers • 192 pages • 3

#58
The Sting of the Scorpion

#58 of 114 in The Hardy Boys

1978 • 3 Readers • 180 pages • 3

#60
Mystery of the Samurai Sword

#60 of 114 in The Hardy Boys

1979 • 3 Readers • 192 pages • 3

#61
El espia del Pentagono

#61 of 114 in The Hardy Boys

1980 • 2 Readers • 174 pages • 3

#62
The Apeman's Secret

#62 of 114 in The Hardy Boys

1980 • 3 Readers • 184 pages • 3

#63
The Mummy Case

#63 of 114 in The Hardy Boys

1980 • 3 Readers • 192 pages • 3

#64
Mystery of Smugglers Cove

#64 of 114 in The Hardy Boys

1980 • 3 Readers • 181 pages • 3

#65
The Stone Idol

#65 of 114 in The Hardy Boys

1981 • 2 Readers • 192 pages • 3

#66
The Vanishing Thieves

#66 of 114 in The Hardy Boys

1980 • 2 Readers • 179 pages • 3

#67
The Outlaw's Silver

#67 of 114 in The Hardy Boys

1981 • 1 Reader • 190 pages • 3

#68
The submarine caper

#68 of 114 in The Hardy Boys

1981 • 1 Reader • 3

#69
Cover 3

The Four-Headed Dragon

#69 of 114 in The Hardy Boys

1981 • 2 Readers • 3.5

#70
The Infinity Clue

#70 of 114 in The Hardy Boys

1981 • 1 Reader • 160 pages • 3

#71
Track of the Zombie

#71 of 114 in The Hardy Boys

1982 • 1 Reader • 194 pages • 3

#72
The Voodoo Plot

#72 of 114 in The Hardy Boys

1982 • 2 Readers • 189 pages • 4

#73
The Billion Dollar Ransom

#73 of 114 in The Hardy Boys

1982 • 1 Reader • 189 pages • 3

#74
Tic-Tac-Terror

#74 of 114 in The Hardy Boys

1984 • 1 Reader • 201 pages • 3

#75
Trapped at Sea

#75 of 114 in The Hardy Boys

1982 • 1 Reader • 181 pages • 3

#76
Game Plan for Disaster

#76 of 114 in The Hardy Boys

1982 • 1 Reader • 3

#77
The Crimson Flame

#77 of 114 in The Hardy Boys

1981 • 2 Readers • 190 pages • 3.5

#78
Cave-In

#78 of 114 in The Hardy Boys

1983 • 2 Readers • 3.5

#79
Sky Sabotage

#79 of 114 in The Hardy Boys

1983 • 1 Reader • 160 pages • 3

#80
The roaring river mystery

#80 of 114 in The Hardy Boys

1984 • 1 Reader • 189 pages • 3

#81
Demon's Den

#81 of 114 in The Hardy Boys

1984 • 1 Reader • 200 pages • 3

#82
The Blackwing Puzzle

#82 of 114 in The Hardy Boys

1984 • 1 Reader • 212 pages • 3

#83
The Swamp Monster

#83 of 114 in The Hardy Boys

1985 • 1 Reader • 192 pages • 3

#84
Revenge Of The Desert Phantom

#84 of 114 in The Hardy Boys

1985 • 1 Reader • 3

#85
The Skyfire puzzle

#85 of 114 in The Hardy Boys

1985 • 1 Reader • 158 pages • 3

#86
The Mystery of the Silver Star

#86 of 114 in The Hardy Boys

1987 • 1 Reader • 151 pages • 3

#87
Program for Destruction

#87 of 114 in The Hardy Boys

1987 • 1 Reader • 180 pages • 3

#88
Tricky Business

#88 of 114 in The Hardy Boys

1988 • 1 Reader • 160 pages • 3

#89
Sky Blue Frame

#89 of 114 in The Hardy Boys

1988 • 1 Reader • 154 pages • 3

#90
Danger on the Diamond

#90 of 114 in The Hardy Boys

1993 • 1 Reader • 148 pages • 3

#91
Shield of Fear

#91 of 114 in The Hardy Boys

1988 • 1 Reader • 153 pages • 3

#92
The Shadow Killers

#92 of 114 in The Hardy Boys

1988 • 1 Reader • 154 pages • 3

#93
The Serpent's Tooth Mystery

#93 of 114 in The Hardy Boys

1988 • 1 Reader • 10 pages • 3

#94
Breakdown in Axeblade

#94 of 114 in The Hardy Boys

1989 • 1 Reader • 150 pages • 3

#96
Wipeout

#96 of 114 in The Hardy Boys

1989 • 1 Reader • 149 pages • 3

#97
Cast of Criminals

#97 of 114 in The Hardy Boys

1989 • 1 Reader • 152 pages • 3

#102
Terminal Shock

#102 of 114 in The Hardy Boys

1990 • 160 pages

#111
Three-Ring Terror

#111 of 114 in The Hardy Boys

1991 • 164 pages

#137
High Speed Showdown

#137 of 114 in The Hardy Boys

1996 • 1 Reader • 162 pages

#138
The Alaskan Adventure

#138 of 114 in The Hardy Boys

1996 • 1 Reader

#142
Lost in Gator Swamp

#142 of 114 in The Hardy Boys

1997 • 164 pages

#144
The Secret of Skeleton Reef

#144 of 114 in The Hardy Boys

1997 • 1 Reader

#150
Cover 3

The Crisscross Crime

#150 of 114 in The Hardy Boys

1998 • 1 Reader

#152
Cover 2

Danger in the Extreme

#152 of 114 in The Hardy Boys

1998 • 1 Reader

#154
The Caribbean Cruise Caper

#154 of 114 in The Hardy Boys

1999 • 164 pages

#157
Cover 2

The Lure of the Italian Treasure

#157 of 114 in The Hardy Boys

1999 • 1 Reader

#161
Training for Trouble

#161 of 114 in The Hardy Boys

2000 • 1 Reader • 147 pages • 3

#162
The End of the Trail

#162 of 114 in The Hardy Boys

2000 • 1 Reader • 131 pages • 3

#164
Skin & Bones

#164 of 114 in The Hardy Boys

2000 • 1 Reader • 148 pages • 4

#165
Crime in the Cards

#165 of 114 in The Hardy Boys

2001 • 1 Reader • 147 pages • 4

#166
Past and Present Danger

#166 of 114 in The Hardy Boys

2001 • 1 Reader • 149 pages • 2

#175
Trick-or-Trouble

#175 of 114 in The Hardy Boys

2002 • 1 Reader • 160 pages

#176
In Plane Sight

#176 of 114 in The Hardy Boys

2002 • 2 Readers • 160 pages • 4

#177
The Case of the Psychic's Vision

#177 of 114 in The Hardy Boys

2003 • 1 Reader

#178
The Mystery of the Black Rhino

#178 of 114 in The Hardy Boys

2003 • 1 Reader • 160 pages • 3

#179
Cover 8

Passport to Danger

#179 of 114 in The Hardy Boys

2003 • 1 Reader

#182
The Secret of the Soldier's Gold

#182 of 114 in The Hardy Boys

2003 • 1 Reader • 164 pages • 4

#184
Cover 5

The Dangerous Transmission

#184 of 114 in The Hardy Boys

2004 • 1 Reader • 4

#190
Motocross Madness

#190 of 114 in The Hardy Boys

2005 • 1 Reader • 160 pages • 4

Cover 1

114 The Hardy Boys

1987 • 1 Reader