The Four-Headed Dragon
Franklin W. Dixon
The Hardy Boys Mystery Stories (69)
The Caves of Steel
Isaac Asimov
Asimov's Robot (1)
The Search for Cindy Austin
Carolyn Keene
Nancy Drew Mystery Stories (88)
The Jungle of Horrors
Joe Dever & Gary Chalk
Lone Wolf (8)
The House of Hades
Rick Riordan
Heroes of Olympus (4)
The Demigod Diaries
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The Son of Neptune
Heroes of Olympus (2)
The Lost Hero
Heroes of Olympus (1)
The Mark of Athena
Heroes of Olympus (3)