Final issue in series. Cover pencils by Larry Lieber. "From the Void It Came...," script by Steve Skeates, pencils by Dan Adkins, inks by Vince Colletta; A brooding Namor gets into a confrontation with a couple of surface dwellers; They attack Namor which leads to a fight; Then he's attacked by an alien creature and also retaliates against it; The defeated created escapes and Namor is left to wonder what its purpose was. Editorial afterword and final closing notes from Roy Thomas. Marvel Value Stamp series A #100, Galactus by Jack Kirby. The Sub-Mariner next appears in Giant-Size Super-Villain Team-Up #1. 36 pgs., full color. $0.25. NOTE: Aquaman #56 and Sub-Mariner #72 is the infamous hidden DC/Marvel crossover! Writer Steve Skeates, unbeknownst to the editorial staffs of Marvel and DC, creates the very first intercompany crossover between the Big Two. Aquaman battles a creature that at the end of the issue explodes in outer space. A few years later, the very same creature emerges in the Marvel Universe from an explosion in outer space. This has to be one of the most underrated and coolest hidden gems in Comics History. – Odinson, Lone Star Comics Archivist Cover price $0.25.