Mark Revel was a scientist, whose colleague by accident let loose the creature known as ZZZAX. The monster absorbed Mark's colleague almost imideately, but it also gained feelings for Alexandria Knox
, Mark's colleagues girlfriend. This made it so that the creature started haunting Alexandria. Only the timely intervention of the Hulk saved Mark and Alexandria. A few months later, Alex was part of a train disaster, but was saved by Luke Cage, Power Man. While in her appartement with Luke Cage, ZZZAX returned to haunt Alex once more. Luke Cage was knocked out, but Mark found him and persuated him to go after ZZZAX and rescue Alexandria. The two managed to find the monster thanks to an invention of Mark, and evenutally they defeated the monster. Mark however did not survive the battle, he was killed by ZZZAX moments before they defeated him. Alexandria was left saddened and alone, feeling that the only two people she had loved where now dead.