Astonishing X-Men Ghost Boxes #2 (2008) Marvel comic book. Written by WARREN ELLIS, Penciled by CLAYTON CRAIN & KAARE ANDREWS, Cover by SIMONE BIANCHI. You met Subject X in the pages of ASTONISHING X-MEN.But what was he really doing and who he was doing it for?Find our in the second issue of this special 2-issue tie-in series to Warren Ellis and Simone Bianchi's opening salvo on Astonishing X-Men!Ghost Boxes is about the real stakes of the Ghost Boxes storyline, and what will happen if the X-Men fail to solve that mystery.