Cover By Adam Kubert Mark Millar & Chuck Austen (w)/ Adam Kubert, Essad Ribic & Chris Bachalo(p) To win humanity\'s trust, The X-Men take their first-ever, world-spanning field trip - and face Professor X\'s greatest secret! Collecting ULTIMATE X-MEN #13 - #20! \'ULTIMATE X-MEN has that dark edge that only Mark Millar\'s best Authority stories once enjoyed.\' -Comics International 192 PGS./FC/MARVEL PG