The Tower of Nero
Rick Riordan
The Trials of Apollo (5)
How to Ride a Dragon's Storm
Cressida Cowell
How to Train Your Dragon (7)
The Hidden Oracle
The Trials of Apollo (1)
Stellarlune
Shannon Messenger
Keeper of the Lost Cities (9)
The Mark of Athena
The Heroes of Olympus (4)
The Serpent's Shadow
The Kane Chronicles (3)