The listing, 1980's * Marvel comic book * New Mutants has ended.
Winner receives copper age issue of..
New Mutants # 21 * November 1984
Slumber Party!,
The New Mutant girls host a slumber party with their friends from Salem Center; Warlock destroys Asteroid M and lands near Xavier's school; after some chaos, the New Mutants bring in Doug to communicate with Warlock, and invite him to join the school. Cannonball, Magik, and Sunspot.
Script by Chris Claremont, art by Bill Sienkiewicz
Giant-size issue