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Cover Illustration by John Picacio
Pocket Books, May 2007

Feared and mistrusted by the very people they have sworn to protect, the X-Men are a band of mutant heroes dedicated to defending humanity from those who would use their powers to harm and destroy. The X-Men are often Earth's last defense against villains and madmen... and the future's only hope.

An alien race calling themselves the Kh'thon descend upon the planet, announcing that they are the former occupants and rightful owners of Earth. The evidence they present is startling: Their ships are manned by Homo sapiens, supposedly descendants of human beings who served the Kh'thon on Earth, countless millennia ago. And the will of the Kh'thon is enforced by the Exemplar, humans augmented with a dizzying array of powers, each the match of any one of the X-Men. The Kh'thon explain that they are responsible for the creation of the x-gene, devised so that they could breed whatever traits or abilities they required of their servants. And now theyıve returned to claim what they believe is rightfully theirs: the planet Earth, and everyone living on it.

It is up to Wolverine, Kitty Pride, Nightcrawler, and the rest of the X-Men -- working in conjunction with Scott Summers, currently a member of X-Force -- to find a way to repel the Khıthon, before humans and mutants alike areenslaved by alien masters...