Spider-Man: Spider's Shadow #5
WHAT IF PETER PARKER BECAME VENOM?
By choosing to keep the symbiote, Spider-Man let himself become a monster. Now, with the help of Mary Jane and the Fantastic Four, he's managed to reclaim control. But if the symbiote can't have Peter, then it will just have to take the rest of the Marvel Universe. The shocking finale of this bold new approach to "What If..?" stories!