Issue: #39
Last valuation update: 2026-04-09
That crazy Cosmic Cube is cooking up trouble!
First appearances: Mastermind
Creators: A. J. Hays, Jim Salicrup, Jim Shooter, Marie Severin, Deborah November, Mike Esposito, Michael Siporin, Winslow Mortimer
Characters: Spider-Man, Carol Danvers, Mary Jane, Thanos, Hellcat, Impossible Man, Mastermind