Bella Legrossi and Boris Kleanitoff, the messiest and cleanest monsters in Booville respectively, do nothing but argue until the night of Harry Beastie's Halloween party.
- ISBN13 9780152025281
- Publish Date 1 September 2004
- Publish Status Out of Print
- Out of Print 8 February 2021
- Publish Country US
- Imprint Harcourt Children's Books
- Format Hardcover
- Pages 32
- Language English