Why it's Hot:
- Cover art by Jack Kirby
- Reprints the classic Silver Age story from X-Men #15 ("Stop the Sentinels!") featuring the Sentinels and the origin of Beast
- CGC Old Label
Synopsis:
This issue is a reprinting of X-Men #15. While a captive Professor X faces the Sentinel leader, Master Mold, the X-Men must wage an all-out assault on the hidden Sentinel base to rescue their mentor before the robotic creations launch their final purge of mutantkind.