Challengers of the Unknown #64

"Invitation to a Hanging": The Challengers attend the hanging of Wolf Dengon, Shark Powell and Snake Saunders who promise that Doc Hemlock will raise them from the dead to get revenge but the Challs witnessed Hemlock taking poison to avoid capture. That night a glowing Dengon appears in the judge’s car and crashes it. Powell drowns the DA while swimming. The Challs visit the thugs’ graves and are jumped by their glowing ghosts. They awaken in Doc Hemlock’s lair discovering he faked his death and battle their robot copies. A fire flares up as Doc Hemlock backs away from the Challs, stumbles, and is hung in a noose. "The Secrets of the Sorcerer's Box": Begins the reprinting of the origin, introduction, and first appearance of the Challengers.