"The X-Men and the Inhumans are on a collision course. Cyclops is missing and presumed dead. But the question on everyone’s lips is "why"? That question and more will be answered in DEATH OF X #1, a new 4-issue series launching this fall! Superstar creators Jeff Lemire (Extraordinary X-Men) and Charles Soule (Uncanny Inhumans) are joined by fan-favorite artist Aaron Kuder (Action Comics) for an incendiary tale that will change the course of Mutantkind and Inhumanity alike! As the Terrigen Mists roll across the Earth, it’s transformative properties are birthing new Inhumans across the Marvel Universe. But while the mists bring life to the Inhumans, they spell only doom for the X-Men, leaving dead or sickly mutants in their wake. As the Inhumans travel to Japan where the Terrigen Cloud has created a shocking new Inhuman, the X-Men travel to Muir Island where the cloud has caused something truly terrible. For the sake of his people, Cyclops must take action or face extinction. But how?"