When the Buccaneer Bunnies receive a note from an unknown enemy, Henry researches and writes a book called "Plan for Impending Danger from the Unknown Enemy Who Wrote the Scary Note," which helps him when the enemy finally arrives.
- ISBN10 0763636010
- ISBN13 9780763636012
- Publish Date 11 August 2009
- Publish Status Out of Stock
- Out of Print 22 November 2013
- Publish Country US
- Imprint Candlewick Press,U.S.
- Format Hardcover
- Pages 40
- Language English