Mystery of the Samurai Sword
Franklin W. Dixon
The Hardy Boys Mystery Stories (60)
Game Plan for Disaster
The Hardy Boys Mystery Stories (76)
The Mystery of the Silver Star
The Hardy Boys Mystery Stories (86)
Program for Destruction
The Hardy Boys Mystery Stories (87)
The Demon's Den
Franklin W. Dixon & Paul Frame
The Hardy Boys Mystery Stories (81)
The Infinity Clue
The Hardy Boys Mystery Stories (70)
The Clue of the Broken Blade
The Hardy Boys Mystery Stories (21)
The Roaring River Mystery
The Hardy Boys Mystery Stories (80)
The Swamp Monster
The Hardy Boys Mystery Stories (83)
Revenge of the Desert Phantom
The Hardy Boys Mystery Stories (84)
The Skyfire Puzzle
The Hardy Boys Mystery Stories (85)
The Blackwing Puzzle
The Hardy Boys Mystery Stories (82)
While the Clock Ticked
The Hardy Boys Mystery Stories (11)
The Voodoo Plot
The Hardy Boys Mystery Stories (72)
Tic-Tac-Terror
Franklin W. Dixon & Leslie Morrill
The Hardy Boys Mystery Stories (74)
The Crimson Flame
The Hardy Boys Mystery Stories (77)
Cave-In
The Hardy Boys Mystery Stories (78)
Sky Sabotage
The Hardy Boys Mystery Stories (79)
Trapped at Sea
The Hardy Boys Mystery Stories (75)
The Outlaw's Silver
The Hardy Boys Mystery Stories (67)
The Submarine Caper
The Hardy Boys Mystery Stories (68)
The Secret Warning
The Hardy Boys Mystery Stories (17)
The Mummy Case
The Hardy Boys Mystery Stories (63)
The Wailing Siren Mystery
The Hardy Boys Mystery Stories (30)
The Firebird Rocket
The Hardy Boys Mystery Stories (57)
Night of the Werewolf
The Hardy Boys Mystery Stories (59)
Hardy Boys 58: The Sting of the Scorpion
The Hardy Boys Mystery Stories (58)
The Jungle Pyramid
The Hardy Boys Mystery Stories (56)
Hardy Boys 55: The Witchmaster's Key
The Hardy Boys Mystery Stories (55)
The Clue in the Embers
The Hardy Boys Mystery Stories (35)
A Figure in Hiding
The Hardy Boys Mystery Stories (16)
The Sign of the Crooked Arrow
Franklin W. Dixon & Franklin Dixon
The Hardy Boys Mystery Stories (28)
The Secret of Wildcat Swamp
The Hardy Boys Mystery Stories (31)
The Yellow Feather Mystery
The Hardy Boys Mystery Stories (33)
The Mystery of the Chinese Junk
The Hardy Boys Mystery Stories (39)
The Mystery of the Aztec Warrior
The Hardy Boys Mystery Stories (43)
Hardy Boys 54: The Mysterious Caravan
The Hardy Boys Mystery Stories (54)
Hunting for Hidden Gold
The Hardy Boys Mystery Stories (5)
Hardy Boys 53: The Clue of the Hissing Serpent
The Hardy Boys Mystery Stories (53)
Hardy Boys 52: The Shattered Helmet
The Hardy Boys Mystery Stories (52)
Hardy Boys 51: The Masked Monkey
The Hardy Boys Mystery Stories (50)
The Disappearing Floor
The Hardy Boys Mystery Stories (19)
Hardy Boys 49: The Bombay Boomerang
The Hardy Boys Mystery Stories (49)
The Twisted Claw
The Hardy Boys Mystery Stories (18)
The Crisscross Shadow
The Hardy Boys Mystery Stories (32)
Hardy Boys 48: The Arctic Patrol Mystery
The Hardy Boys Mystery Stories (48)
The Sinister Signpost
The Hardy Boys Mystery Stories (15)
The Secret of the Lost Tunnel
The Hardy Boys Mystery Stories (29)
Mystery of the Whale Tattoo
The Hardy Boys Mystery Stories (47)
The Secret Agent on Flight 101
The Hardy Boys Mystery Stories (46)
The Short-Wave Mystery
The Hardy Boys Mystery Stories (24)
Hardy Boys 45: The Mystery of the Spiral Bridge
The Hardy Boys Mystery Stories (45)
Footprints Under the Window
The Hardy Boys Mystery Stories (12)
Hardy Boys 44: The Haunted Fort
The Hardy Boys Mystery Stories (44)
The Secret of the Caves
The Hardy Boys Mystery Stories (7)
The Viking Symbol Mystery
The Hardy Boys Mystery Stories (42)
Hardy Boys 41: The Clue of the Screeching Owl
The Hardy Boys Mystery Stories (41)
The Hidden Harbor Mystery
The Hardy Boys Mystery Stories (14)
Hardy Boys 40: Mystery of the Desert Giant
The Hardy Boys Mystery Stories (40)
Hardy Boys 38: Mystery at Devil's Paw
The Hardy Boys Mystery Stories (38)