Grover's Mill is a town where weird things are commonplace, such as a moving bump in the street pavement that leads Jeff Ryan to discover an invasion of furry, tunneling aliens.
- ISBN10 0590674366
- ISBN13 9780590674362
- Publish Date 1 November 1996 (first published 1 January 1996)
- Publish Status Active
- Out of Print 18 October 2010
- Publish Country US
- Imprint Scholastic US
- Format Paperback
- Pages 10
- Language English