The New Mutants 1983 #21 Direct ed. - 6.5 - $7.25

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.

Double-Sized Issue. On-sale date from Amazing Heroes #51, with newsstand on-sale date of 1984-07-24.

• Slumber Party! - Warlock joins the New Mutants at the end of this story, and Doug Ramsey shortly after. Magneto's long-time base, Asteroid M, is destroyed in this story; it is rebuilt in X-Men (1991) #1. Magneto next appears in Uncanny X-Men #188. The New Mutants appear next in New Mutants Annual #1.
• - Letters of comment from readers Lee Cavett, Anne Raine, Anthony Padilla, Professor Azimuth, T. M. Maple, David Riley, Kathy Li, Joel Kinstle, David Preston, Jesse Raley, and Melissa Cook.