Written by Charles Soule and Jeff Lemire. Art by Leinil Francis Yu. Cover by Ardian Syaf. THIS IS IT! The X-Men and Inhumans have been on a collision course since the link was proven between the Inhumans' precious Terrigen Mist and the sickness and death of many mutants. When Beast discovers that the mutants have only two weeks before the planet is uninhabitable for them, an Inhuman/mutant war is unavoidable.