117 books in series
The Hardy Boys
The Hardy Boys is a 117-book series with 117 released primary works first released in 1920 with contributions by Franklin W. Dixon, Jerrold Mundis, and Leslie H. Morrill.
| #1 |  The Tower Treasure
| 3.44 | 49 reads | ||
| #2 |  The House on the Cliff
| 3.72 | 29 reads | ||
| #3 |  The Secret of the Old Mill The Secret of the Old Mill
| 3 | 2 reads | ||
| #4 |  The Missing Chums
| 3.5 | 13 reads | ||
| #5 |  Hunting for hidden gold
| 3.57 | 11 reads | ||
| #6 |  The Shore Road Mystery
| 3 | 8 reads | ||
| #7 |  The Secret of the Caves
| 3.17 | 9 reads | ||
| #8 |  Mystery of Cabin Island
| 3 | 4 reads | ||
| #9 |  The great airport mystery
| 3 | 5 reads | ||
| #10 |  What Happened at Midnight
| 3.5 | 7 reads | ||
| #11 |  While the Clock Ticked
| 3.29 | 11 reads | ||
| #12 |  Footprints under the window
| 3 | 3 reads | ||
| #13 |  The Mark on the Door
| 3 | 4 reads | ||
| #14 |  The Hidden Harbor Mystery
| 3 | 4 reads | ||
| #15 |  The Sinister Sign Post
| 3.33 | 4 reads | ||
| #16 |  A Figure in Hiding (Hardy Boys, #16)
| 3 | 3 reads | ||
| #17 |  The Secret Warning
| 3 | 4 reads | ||
| #18 |  The Twisted Claw
| 3.57 | 8 reads | ||
| #19 |  The mystery of the disappearing floor.
| 3.4 | 7 reads | ||
| #20 |  Mystery of the Flying Express
| 3 | 3 reads | ||
| #21 |  The clue of the broken blade
| 3 | 3 reads | ||
| #22 |  The flickering torch mystery
| 3.25 | 5 reads | ||
| #24 |  The Short-Wave Mystery
| 3 | 3 reads | ||
| #25 |  The Secret Panel
| 3.3 | 6 reads | ||
| #26 |  The Phantom Freighter
| 3 | 3 reads | ||
| #27 |  The Secret of Skull Mountain
| 3 | 3 reads | ||
| #28 |  The sign of the crooked arrow
| 3 | 3 reads | ||
| #30 |  The Wailing Siren Mystery
| 3 | 3 reads | ||
| #31 |  The Secret of Wildcat Swamp
| 3 | 4 reads | ||
| #32 |  The Crisscross Shadow
| 3.33 | 4 reads | ||
| #33 |  The Yellow Feather Mystery
| 3 | 4 reads | ||
| #35 |  The Clue in the Embers
| 3 | 3 reads | ||
| #36 |  The Secret of Pirates' Hill
| 3.33 | 4 reads | ||
| #37 |  The Ghost at Skeleton Rock
| 3.33 | 4 reads | ||
| #38 |  Mystery at Devil's Paw
| 3 | 3 reads | ||
| #39 |  The mystery of the Chinese junk
| 3 | 3 reads | ||
| #40 |  Mystery of the Desert Giant
| 3.5 | 5 reads | ||
| #42 |  The Viking Symbol Mystery
| 3 | 3 reads | ||
| #43 |  The Mystery of the Aztec Warrior
| 3.67 | 5 reads | ||
| #45 |  The mystery of the spiral bridge
| 3 | 3 reads | ||
| #46 |  The hooded hawk mystery
| 3 | 4 reads | ||
| #47 |  Mystery of the Whale Tattoo
| 3 | 3 reads | ||
| #48 |  The Arctic patrol mystery.
| 3.33 | 4 reads | ||
| #49 |  The Bombay Boomerang
| 3 | 3 reads | ||
| #50 |  Danger on Vampire Trail
| 3.33 | 4 reads | ||
| #51 |  Masked Monkey
| 3 | 4 reads | ||
| #52 |  The Shattered Helmet
| 3.5 | 5 reads | ||
| #53 |  The Clue of the Hissing Serpent
| 3 | 3 reads | ||
| #54 |  The Mysterious Caravan
| 3.33 | 5 reads | ||
| #55 |  The Witchmaster's Key
| 3 | 3 reads | ||
| #56 |  The Jungle Pyramid
| 3 | 3 reads | ||
| #57 |  The Firebird Rocket
| 3 | 5 reads | ||
| #58 |  The Sting of the Scorpion
| 3 | 3 reads | ||
| #60 |  Mystery of the Samurai Sword
| 3 | 3 reads | ||
| #61 |  El espia del Pentagono
| 3 | 2 reads | ||
| #62 |  The Apeman's Secret
| 3 | 3 reads | ||
| #63 |  The Mummy Case
| 3 | 3 reads | ||
| #64 |  Mystery of Smugglers Cove
| 3 | 3 reads | ||
| #65 |  The Stone Idol
| 3 | 2 reads | ||
| #66 |  The Vanishing Thieves
| 3 | 2 reads | ||
| #67 |  The Outlaw's Silver
| 3 | 1 read | ||
| #68 |  The submarine caper
| 3 | 1 read | ||
| #69 |  The Four-Headed Dragon The Four-Headed Dragon
| 3.5 | 2 reads | ||
| #70 |  The Infinity Clue
| 3 | 1 read | ||
| #71 |  Track of the Zombie
| 3 | 1 read | ||
| #72 |  The Voodoo Plot
| 4 | 2 reads | ||
| #73 |  The Billion Dollar Ransom
| 3 | 1 read | ||
| #74 |  Tic-Tac-Terror
| 3 | 1 read | ||
| #75 |  Trapped at Sea
| 3 | 1 read | ||
| #76 |  Game Plan for Disaster
| 3 | 1 read | ||
| #77 |  The Crimson Flame
| 3.5 | 2 reads | ||
| #78 |  Cave-In
| 3.5 | 2 reads | ||
| #79 |  Sky Sabotage
| 3 | 1 read | ||
| #80 |  The roaring river mystery
| 3 | 1 read | ||
| #81 |  Demon's Den
| 3 | 1 read | ||
| #82 |  The Blackwing Puzzle
| 3 | 1 read | ||
| #83 |  The Swamp Monster
| 3 | 1 read | ||
| #84 |  Revenge Of The Desert Phantom
| 3 | 1 read | ||
| #85 |  The Skyfire puzzle
| 3 | 1 read | ||
| #86 |  The Mystery of the Silver Star
| 3 | 1 read | ||
| #87 |  The Hardy Boys Program for Destruction
| 3 | 1 read | ||
| #88 |  Tricky Business
| 3 | 1 read | ||
| #89 |  Sky Blue Frame
| 3 | 1 read | ||
| #90 |  Danger on the Diamond
| 3 | 1 read | ||
| #91 |  Shield of Fear
| 3 | 1 read | ||
| #92 |  The Shadow Killers
| 3 | 1 read | ||
| #93 |  The Serpent's Tooth Mystery
| 3 | 1 read | ||
| #94 |  Breakdown in Axeblade
| 3 | 1 read | ||
| #96 |  Wipeout
| 3 | 1 read | ||
| #97 |  Cast of Criminals
| 3 | 1 read | ||
| #102 |  Terminal Shock
| 0 | 0 reads | ||
| #111 |  Three-Ring Terror
| 0 | 0 reads | ||
| #137 |  High Speed Showdown
| 0 | 0 reads | ||
| #138 |  The Alaskan Adventure
| 0 | 0 reads | ||
| #142 |  Lost in Gator Swamp
| 0 | 0 reads | ||
| #144 |  The Secret of Skeleton Reef
| 0 | 0 reads | ||
| #150 | The Crisscross Crime The Crisscross Crime
| 0 | 0 reads | ||
| #152 |  Danger in the Extreme Danger in the Extreme
| 0 | 0 reads | ||
| #154 |  The Caribbean Cruise Caper
| 0 | 0 reads | ||
| #157 | The Lure of the Italian Treasure The Lure of the Italian Treasure
| 0 | 1 read | ||
| #161 |  Training for Trouble
| 3 | 1 read | ||
| #162 |  The End of the Trail
| 3 | 1 read | ||
| #164 |  Skin & Bones
| 4 | 1 read | ||
| #165 |  Crime in the Cards
| 4 | 1 read | ||
| #166 |  Past and Present Danger
| 2 | 1 read | ||
| #172 |  Trouble in Warp Space
| 0 | 0 reads | ||
| #175 |  Trick-or-Trouble
| 0 | 1 read | ||
| #176 |  In Plane Sight
| 4 | 1 read | ||
| #177 |  The Case of the Psychic's Vision
| 0 | 1 read | ||
| #178 |  The Mystery of the Black Rhino
| 3 | 1 read | ||
| #179 |  Passport to Danger Passport to Danger
| 0 | 0 reads | ||
| #180 |  Typhoon Island
| 0 | 0 reads | ||
| #182 |  The Secret of the Soldier's Gold
| 4 | 2 reads | ||
| #184 |  The Dangerous Transmission The Dangerous Transmission
| 4 | 1 read | ||
| #189 |  One False Step
| 0 | 0 reads | ||
| #190 |  Motocross Madness
| 4 | 1 read | ||
 Hardy Boys, 4 Volumes Boxed Set Hardy Boys, 4 Volumes Boxed Set
| 0 | 1 read |