sentences:  Later during a mission against Hydra with Psylocke, Wolverine holds off the enemy forces while Psylocke attempts to get away, but she is taken by an unknown assailant who leaves her severed arm behind.Wolverine decides to stay investigate Psylocke's disappearance and the cause of the growing pandemic, witnessing the horrid acts of violence and cannibalism over the city.He is eventually contacted by the X-Men to help investigate Angel's disappearance after the later was supposed to bring lab equipment for Hank McCoy, who along with Reed Richards, Hank Pym, and T'Challa, are trying to develop a cure for the plague.