Solar Man of the Atom (1991) #12
How Doctor Erica Pierce became Mothergod and began her evil plans for the universe is revealed to Solar and upon knowing, he tries to stop her in "...And Then There Was None," chapter nine of the "Unity" saga which involved all of the comic titles published by Valiant at the time. Script by Jim Shooter and art by Don Perlin & Stan Drake. Frank Miller cover.
Cover price $2.25.