Oscar tries to explain to Grizzy that she should be rude and messy and rotten because she lives in Grouchland.
- ISBN10 0375901337
- ISBN13 9780375901331
- Publish Date 28 September 1999 (first published 1 August 1999)
- Publish Status Out of Print
- Out of Print 23 April 2014
- Publish Country US
- Publisher Penguin Random House Children's UK
- Imprint Random House Children's Books
- Format Hardcover (Library Binding)
- Language English