Batman Superman Worlds Finest #21 Cvr C Crystal Kung Dc Holiday Card Special Edition Var

Superman and Batman, having followed Boy Thunder to Kingdom Come, find themselves and that world on a path to an apocalyptic future. Can the World's Finest team prevent the transformation of Boy Thunder into the villainous Magog, or is his fate sealed? (W) Mark Waid (A) Dan Mora (CA) Crystal Kung