Warlock and the Infinity Watch #5 (1992)

he begins to realize that he's fighting someone he's battled before. And if his suspicions are correct, held in a starship secretly orbiting Earth, Realizing that the rest of the Infinity Watch have been subdued, then he knows that he is battling one of his oldest foes., Warlock charges to the rescue even though he is still unsure of his ability since returning to a mortal existence. But in a clash with one of the Omega's servants, Warlock telepathically consults the hidden guardian of the Reality Gem to learn the whereabouts of the other Gem guardians. Learning that they are captives of the being called The Omega