Hazel sets out to prove that she, not her baby brother, is the worst monster anywhere. Since the Baby Monster arrived, no one notices big sister Hazel's talents. When Billy wins the Worst Monster Baby in the World contest, that's the final straw--Hazel must prove that she is the Worst Monster in the World.
- ISBN10 0688078168
- ISBN13 9780688078164
- Publish Date 23 May 1988 (first published 1 January 1985)
- Publish Status Active
- Publish Country US
- Imprint Greenwillow Books
- Format Paperback (US Trade)
- Pages 32
- Language English