Relates Betsy's humorous efforts to keep a surprise birthday party for her twin sister a secret.
- ISBN10 0805026266
- ISBN13 9780805026269
- Publish Date 1 March 1993 (first published 1 September 1991)
- Publish Status Out of Print
- Out of Print 17 March 2021
- Publish Country US
- Imprint Henry Holt & Company
- Format Paperback (US Trade)
- Pages 64
- Language English