- 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
- D&D dungeon club, written by Molly Knox Ostertag ; illustrated by Xanthe Bouma
- 5 worlds, Mark Siegel, Alexis Siegel ; [illustrated by] Xanthe Bouma, Boya Sun, Matt Rockefeller, Book 2
- 5 worlds, Mark Siegel, Alexis Siegel ; [illustrated by] Xanthe Bouma, Boya Sun, Matt Rockefeller, Book 3