The Sword of Summer
by
Rick Riordan
2015, Puffin
The Ship of the Dead
by
Rick Riordan
,
John Rocco
2017, Disney Hyperion
The Hammer of Thor
by
Rick Riordan
2016, Disney - Hyperion, Disney Pr
9 from the Nine Worlds
by
Rick Riordan
2018-10, Hyperion Books
Hotel Valhalla Guide to the Norse Worlds
by
Rick Riordan
2016, Puffin