Title: The Riddle of the Robot Justice League!
Featuring: Justice League of America
Synopsis: Sforll transports the Justice League to his lair to enlist them in preventing Zed Brann from stealing the life force ("vita-matter") of our universe for his own. They must fight robot duplicates of themselves to save the universe.
Character Appearances: Green Lantern [Hal Jordan]; Martian Manhunter; Wonder Woman; Green Arrow [Oliver Queen]; The Flash [Barry Allen]; Batman; Superman; Aquaman; Snapper Carr (cameo); Speedy (cameo); Pieface (cameo); Jimmy Olsen (cameo); Sforll; Zed Brann (villain, flashback); Ragnar (flashback)
Credits: Gardner Fox (Script), Mike Sekowsky (Pencils), Bernard Sachs (Inks), ? (Colors), ? (Letters).