Sparky and his friends journey to Rainbow Hall, where they must solve a series of picture puzzles to get a new rainbow to stop the rain.
- ISBN10 0688111947
- ISBN13 9780688111946
- Publish Date 1 April 1992
- Publish Status Out of Print
- Out of Print 13 March 2021
- Publish Country US
- Imprint Lothrop, Lee and Shepard Books
- Format Hardcover
- Language English