Operating out of their Cowcave headquarters, Supermoo, a superheroine Holstein, and her trusty sidekick, Calf Crypton, battle the evil forces of pollution that are out to destroy the world.
- ISBN: 9780399224225
- Author: Cole, Babette
- Published: 1993 , Putnam
- Themes: evil force, pollution, protection, Superhero
- Descriptors: England (UK), Europe, Fantasy, Picture Book, Primary (ages 6-9)
- No. of pages: 32