Uncanny X-Men Vol.1 #113
Don't miss the most unbelievable mutant showdown as the X-Men battle the Master of Magnetism himself aboard Magneto's orbiting satellite - Asteroid M! Even if Xavier's team of heroes can somehow find a way to defeat their enemy, how will they survive the harsh cold void of space? Plus, more secrets revealed about Storm's past.
Printed: Sept 1978
Writers: Chris Claremont and John Byrne
Art: John Byrne and Terry Austin
Cover: John Byrne, Bob Layton, and Danny Crespi