What they thought would be a dream vacation turns into a nightmare for twelve-year-old Lewis and his twin sister Alison, when they accompany their irresponsible new neighbors on a trip to Yellowstone Park and are chased by two mysterious men.
- ISBN10 061302141X
- ISBN13 9780613021418
- Publish Date 1 May 1997 (first published 1 November 1994)
- Publish Status Out of Print
- Out of Print 28 November 2011
- Publish Country US
- Imprint Econo-Clad Books, Div. of American Cos., Inc.
- Edition Bound for Schools & Libraries ed.
- Format Hardcover
- Pages 154
- Language English