Julia Carpenter is a superhero appearing in American comic books published by Marvel Comics. Created by Jim Shooter and Mike Zeck, the character first appeared in Secret Wars #6. Julia Carpenter was known as the second Spider-Woman, later as the second Arachne, and then as the second Madame Web.

Marvel Super Heroes Secret Wars, commonly known as Secret Wars, is a 12-issue American comic book crossover limited series published from May 1984 to April 1985 by Marvel Comics. The series was written by Jim Shooter, with art by Mike Zeck and Bob Layton. It was tied in with a similarly-named toy line from Mattel and a role-playing game of the same name from TSR, Inc.