Volume 1, #31. "There's Something Awful on Muir Island!"
Marvel Comics. March, 1989.
Writer(s): Chris Claremont
Artist(s): John Byrne, Terry Austin, Glynis Oliver
Notes:
Backup story "Spigot at the End of the Universe" by Ann Nocenti, John Bolton, Petra Scotese
Reprint of Uncanny X-Men (1963) #125
Front Cover Art: Steve Lightle
Back Cover Art: John Bolton