X-Men: X-Termination #[nn]

This 2013 Marvel collection ties together the final chapters of three interconnected X-Men storylines—Age of Apocalypse, Astonishing X-Men, and X-Treme X-Men—as a catastrophic rift in reality threatens to consume all of existence. Featuring key appearances by Wolverine and Nightcrawler (Kurt Wagner), the volume follows multiple X-teams in a desperate race to prevent the X-Termination, a reality-shattering event that could erase entire timelines.