X-Men Gold #6

(W) Marc Guggenheim (A) R. B. Silva, Adriano Di Benedetto (CA) Ardian Syaf. * The perfect mutant-killing machine has MUTATED. * As the X-Men fight for their lives against the most fearsome SENTINEL yet* one X-Man decides to do the unthinkable! * Will it take the life of one X-Man to save the rest? Rated T+