Captain Marvel: Master Race
by Libbylawrence 
When Captain Marvel is attacked by a masked foe who is his very equal in might and power, he seeks guidance from the old wizard Shazam. But when he discovers that his foe is actually a forgotten hero, he vows to save him from the thrall of the Aryan villainess who controls him as her mad pawn! Reintroducing Master Man!
DC Universe: The Rock of Eternity
by Immortalwildcat, Starsky Hutch 76, Libbylawrence, Doc Quantum, Martin Maenza and Earth Elemental 99 
At the end of the Crisis on Infinite Earths, the final remaining Earths became one. But the wizard Shazam wasn’t about to stand for that. But even as he separated the Earths into five and erected powerful barriers between them, it’s nearly a full-time job to keep them from being pierced by heroes and villains alike. Meanwhile, a gathering of some of the worst villains ever are making their own plans. Guest starring Captain Marvel and Earth-One’s John Constantine!