The Kirby Checklist credits this to Kirby/M. Severin/Giacoia, so I’m guessing Marie Severin did some touch-ups to bring it closer to model for the book. Might explain why Skull’s head doesn’t seem to quite fit right on his body. No, I’m not sure why, when given Kirby available to do comic covers, somebody decided that him drawing Skull would be a good idea….
Published 1976
Bob,
This cover was designed by Marie Severin, and she made some alterations in the background (the flying birds), but Skulls face is all-Kirby. The pencilled page was printed in JKC some time ago, with Marie’s cover sketch.
Nick Caputo