Secret Origins: The Books of Magic: 1951: Founding Fathers
by CSyphrett, with Martin Maenza 
When five mystically based heroes from five different parallel Earths come together to stop a threat to each of their worlds, they little expect what may come from the adventure. Could a small piece of Hell, even properly controlled, make a good environment for a school of magic? Featuring Captain Marvel of Earth-S, Doctor Occult of Earth-Two, Doctor Mist of Earth-One, Margo the Magician of Earth-X, and Yarko the Great of Earth-Four!