Charlton took the unusual step of giving Howard a "created by" credit on each issue's cover, providing a precedent for such credits eventually becoming common years later beginning with DC's Vertigo imprint. Charlton writer/editor Nick Cuti described Howard's credit being granted because the book, "... was his idea, his concept, his everything." In addition, each issue shared a theme: "One time it would be blob monsters, and I wrote three stories about blob monsters, and another time it was vampires ... and that sort of thing". Howard penciled and inked every cover and virtually every story, and occasionally scripted stories as well.