Sunday is Monkey Covers day here at YACB. Because there's nothing better than a comic with a monkey on the cover.
Peter Cannon — Thunderbolt! battles in the Ape Arena on the cover to Secrets of the Unknown #229. That's right: The Ape Arena! I love comics!
(Standard disclaimer about apes in arenas not really being monkeys applies.)
Image courtesy of the GCD. Click on the image for a larger version.