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The Alaskan Mystery (Nancy Drew & Hardy Boys Super Mysteries) (Be a detective mystery stories) by Carolyn Keene and Franklin W. Dixon

Hardy Boys 13: the Mark on the Door (Hardy Boys (eBook), #13) (The Hardy Boys, #13) by

Nancy Drew 34: the Hidden Window Mystery (Nancy Drew (eBook), #34) (Nancy Drew, #34) by

Secret of Red Gate Farm (Nancy Drew Mystery Stories, #6) by Carolyn Keene

The Hidden Harbor Mystery (Hardy Boys (eBook), #14) (Hardy Boys, #14) by Franklin W. Dixon

Hardy Boys 18: the Twisted Claw (The Hardy Boys, #18) by

The Triple Hoax (Nancy Drew Mystery Stories, #57) (Three-in-ones) by Carolyn Keene

Mystery of the Castaway Children (Mystery of the Castaway Children, #21) by Kathryn Kenny

Hardy Boys 15: the Sinister Signpost (Hardy Boys, #15) (Hardy Boys (eBook), #15) by

Clue in the Jewel Box #20 (Nancy Drew Mystery Stories, #20) by Carolyn Keene

Nancy's Mysterious Letter (Nancy Drew Mystery Stories, #8) by Carolyn Keene

Hardy Boys 25: the Secret Panel (Hardy Boys, #25) (Hardy Boys (eBook), #25) by

Mystery of the Missing Millionaire (Mystery of the Missing Millionaire, #34) by Kathryn Kenny and Julie Campbell

Nancy Drew 43: the Mystery of the 99 Steps (Nancy Drew, #43) (Nancy Drew (eBook), #43) by

Hardy Boys 41: The Clue of the Screeching Owl (Hardy Boys (eBook), #41) (The Hardy Boys, #41) by

Myst of Queens -Op/104 by Kathryn Kenny

The Secret of Skull Mountain (Hardy Boys, #27) by

Nancy Drew 41: the Clue of the Whistling Bagpipes (Nancy Drew (eBook), #41) (Nancy Drew, #41) (Nancy Drew (Hardcover), #41) by

The Flying Saucer Mystery (Nancy Drew Mystery Stories, #58) by Carolyn Keene

Hardy Boys 54: the Mysterious Caravan (The Hardy Boys, #54) by

Nancy Drew 15: the Haunted Bridge (Nancy Drew, #15) by

Trixie Belden and the Mystery of the Whispering Witch (Mystery of the Whispering Witch, #32) by Kathryn Kenny and Julie Campbell

The Mystery of the Desert Giant by Franklin W. Dixon

Hardy Boys 53: the Clue of the Hissing Serpent (Hardy Boys (eBook), #53) (The Hardy Boys, #53) by