At the end of 1983, she quit her editing job at Marvel to try her hand at full-time writing as Louise Simonson. She created the Eagle Award-winning "Power Pack". The title, which debuted in August 1984, featured the adventures of four pre-teen superheroes. Simonson wrote the majority of the title's first forty issues, even coloring one issue (#18). Her other Marvel writing work included "Starriors", "Marvel Team-Up", "Web of Spider-Man", and "Red Sonja". Louise helped her husband Walt Simonson color his "Star Slammers" story in "Marvel Graphic Novel" #6 (1983).