"The Child is Father To...?"
Ms. Marvel gives birth and her son matures to manhood within hours. His name is Marcus and he is the son of Immortus. He has been trapped in limbo and decided that to escape, he would have to be born of a woman. He pulled Ms. Marvel into limbo where he seduced her and sent her back to the point in time he took her from. She had no memory of this. In the end Marcus must go back to limbo, but Ms. Marvel decides to go with him so he won't be alone.