- Script:
- Chris Claremont
- Pencils:
- Bill Sienkiewicz
- Inks:
- Bill Sienkiewicz
- Colors:
- Glynis Wein
- Letters:
- Tom Orzechowski; L. Lois Buhalis
- Genre:
- superhero
- Characters:
- Professor X; Cannonball; Magik; Magma; Danielle Moonstar; Sunspot; Wolfsbane; Lockheed; Doug Ramsey; Warlock; Magneto (guest-star)
- Synopsis:
- 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.
- Reprints: show reprint note before migration
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.