Written by WARREN ELLIS Pencils and Cover by PHIL JIMENEZ Special Variant by TBA 'eXogenetic' Part 4 Gruesome Bio-Sentinels. Genetically-augmented Brood. Someone is taking the X-Men's biggest threats and making them nightmares. As Cyclops and his team struggle to survive long enough to confront the one responsible, their tormentor has something even more horrible awaiting them! 32 PGS./Rated T+ ?$2.99