X-Men: Schism (2011) #4

The events of Schism #1 have launched the world into turmoil, and the all-new Hellfire Club is ready to take advantage of the chaos. But when the survival of the mutant race is on the line, just how far will the X-Men go? Once a line is crossed, there's no going back. The event that promises to tear the X-Men apart at their very core continues, by writer and Marvel Architect Jason Aaron, and superstar artist Alan Davis!