"The Martian Legion: In Quest of Xonthron" is a book written by Jake (Buddy) Saunders, and features Tarzan, John Carter, Doc Savage, The Shadow, Carson Napier, and Alley Oop among other as they gather to fight foes across Barsoom and many other worlds.
Features 130 illustrations by Tom Grindberg, Michael C. Hoffman, and Craig Mullins, including:
- 106 spot illustrations
- 21 full page paintings and color illustrations
- 3 double-page paintings and color illustrations