- 5 worlds, Mark Siegel, Alexis Siegel ; [illustrated by] Xanthe Bouma, Boya Sun, Matt Rockefeller, Book 4
- 5 worlds, Mark Siegel and Alexis Siegel ; [illustrated by] Xanthe Bouma, Matt Rockefeller, and Boya Sun, Book 1
- 5 worlds, Mark Siegel, Alexis Siegel ; [illustrated by] Xanthe Bouma, Boya Sun, Matt Rockefeller, Book 3
- 5 worlds, Mark Siegel, Alexis Siegel ; [illustrated by] Xanthe Bouma, Boya Sun, Matt Rockefeller, Book 2
- D&D dungeon club, written by Molly Knox Ostertag ; illustrated by Xanthe Bouma
- The Dragon Prince, story by Aaron Ehasz and Justin Richmond ; written by Peter Wartman ; illustrated by Xanthe Bouma, 1