With the help of a mysterious stranger and the magical gift he brought them from India, the Halls foil a new enemy's plan to build a Henry Thoreau theme park across from their home.
- ISBN10 0060094877
- ISBN13 9780060094874
- Publish Date 10 May 2005
- Publish Status Active
- Publish Country US
- Publisher HarperCollins Publishers
- Imprint Collins
- Format Hardcover (Library Binding)
- Pages 211
- Language English