Issue · Marvel Comics Ultimate X-Men (2001) #6: Invasion Released May 16, 2001 USD $2.25 36 pages WriterMark Millar PencillerAdam Kubert InkerDanny Miki ColoristRichard Isanove Next in Ultimate X-Men (2001) #7 · Return to Weapon X Jun 27, 2001 #8 · First Strike Aug 15, 2001 #9 · No Safe Haven Sep 12, 2001 #10 · In the Heart of Darkness Oct 3, 2001