On inside front and back covers.
- Al Williamson; Roy Krenkel (some backgrounds)
- Al Williamson; Roy Krenkel; Frank Frazetta
- science fiction
- Buster Crabbe; Whiskers
Williamson once explained that he called Krenkel in to draw background architecture, though it's possible he also had a hand in inking some of this story. Certainly Frazetta inked many of the figures.