Then Siegel and Schuster began a six-year search for a publisher. They called the project "The Superman" and brought it to Consolidated Book Publishing, which published a 48-page black-and-white comic book called "Detective Dan: Secret Operative" № 48, but after that this cooperation finished. Schuster took this to heart and burned every page of the story, only the cover was saved. Siegel and Schuster compared this character to Slam Bradley, an adventurer the couple created for Detective Comics № 1 (March, 1937). In 1938, editor Vin Sullivan chose it as a cover feature for National Action Comics №1 (June, 1938). The following year, Siegel and Schuster initiated a series of Superman comics.