Ultimate XMen Vol 3 World Tour Author:Mark Millar, Chuck Austen, Adam Kubert, Chris Bachalo, Esad Ribic Collects Ultimate X-Men (2001-2009 1st Series) #13-20.
Written by Mark Millar and Chuck Austen. Art by Adam Kubert, Essad Ribic, and Chris Bachalo. Cover By Adam Kubert.
To win humanity's trust, The X-Men take their first-ever, world-spanning field trip - and face Professor X's greatest secret!