Bang Goes a Troll: An Awfully Beastly Business

The Lost Continent (Wings of Fire #11)

The Hive Queen (Wings of Fire #12)

The Flames of Hope (Wings of Fire, Book 15)

The Poison Jungle (Wings of Fire #13)

Darkness of Dragons (Wings of Fire #10)

The Dangerous Gift (Wings of Fire #14)

Pegasus and the Flame: Book 1

Pegasus and the Fight for Olympus: Book 2

Pegasus and the Origins of Olympus: Book 4

Dragon Bones

The Wizards of Once: Book 1

Dragon Captives

Pegasus and the New Olympians: Book 3