While playing in their "magic fort," an easily climbable tree, Kevin's brother Joseph breaks his arm, teaching both boys a lesson in responsibility and playing together.
- ISBN10 0395500672
- ISBN13 9780395500675
- Publish Date 1 March 1991
- Publish Status Out of Print
- Out of Print 13 August 2014
- Publish Country US
- Imprint Houghton Mifflin
- Format Hardcover
- Pages 32
- Language English