The Sword of Summer
Rick Riordan
Magnus Chase and the Gods of Asgard (1)
Inheritance
Christopher Paolini
The Inheritance Cycle (4)
The Dark Prophecy
The Trials of Apollo (2)
The Blood of Olympus
The Heroes of Olympus (5)
How to Be a Pirate
Cressida Cowell
How to Train Your Dragon (2)
How to Twist a Dragon's Tale
How to Train Your Dragon (5)