The inside front cover and first interior page reprint art from "The Magician and the Snake" [Seq. 13], followed by a blank black page. The last interior page and inside back cover reprint the same art, preceded by a blank black page.
"For my wife, my daughter, and former U.S. President Abraham Lincoln."
Photo credit is from Library of Congress website, thanks to indicia pointer to digital ID cph.3a53289 in LOC's Prints and Photographs Division.
The main story is followed by a gallery of odd portraits.
Story is redrawn and slightly rewritten from an earlier version first published in Scatterbrain (Dark Horse, 1998 series) #1.
Narrator identifies Abu Gung as the future Gung the Magnificent (cf. "The Amazing Screw-On Head").
First caption suggests that full title is "How Doctor Snap Murdered Professor Cyclops and What Came of It. Or -- The Prisoner of Mars".
Cover rough, character designs, and other curious objects are presented with commentary from the artist.