The Hidden Oracle
Rick Riordan
The Trials of Apollo (1)
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9 from the Nine Worlds
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Keeper of the Lost Cities
Shannon Messenger
Keeper of the Lost Cities (1)
How to Train Your Dragon
Cressida Cowell
How to Train Your Dragon (1)
How to Cheat a Dragon's Curse
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How to Be a Pirate
How to Train Your Dragon (2)