The biggest event to hit the X-Men in ten years is here! Just when it looked like there was no possibility of a future for mutants, hope arrives. But the X-Men aren't there to meet it - the Marauders and Purifiers beat them to it. Now the race is on to get the first new mutant since "House of M"! This title collects "X-Men: Messiah CompleX One-Shot", "Uncanny X-Men" numbers 492-494, "X-Men" numbers 205-207, "New X-Men" numbers 44-46, "X-Factor" numbers 25-27, and "X-Men: Messiah CompleX - Mutant Files".