The Ghostbusters are summoned to the Grand Canyon to vaporize some prehistoric poltergeists.
- ISBN10 0671640658
- ISBN13 9780671640651
- Publish Date 1 January 1987
- Publish Status Unknown
- Out of Print 8 October 2015
- Publish Country GB
- Imprint Simon & Schuster
- Format Hardcover
- Pages 48
- Language English