Written by Peter Milligan. Art by Federico Santagati and David Lafuente. Cover by Michael Allred and Laura Allred. A senior X-Man must find Doop and make him stop the craziness corrupting the real world. But is the little green guy too far gone to listen? Someone leaves the X-Men, Doop turns down a marriage proposal, and a reservation is made at the Hall of Hairy Armpits.