When a mysterious stranger takes up residence in the treehouse they've just built, Bill and the gang learn a lesson about racism.
- ISBN10 0613903293
- ISBN13 9780613903295
- Publish Date 1 January 1999 (first published 1 July 1995)
- Publish Status Out of Print
- Out of Print 6 April 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Language English