An invitation from a stranger on a train takes Nikki to unicorns and the boarding of an ark.
- ISBN10 0689307357
- ISBN13 9780689307355
- Publish Date 1 January 1980
- Publish Status Out of Print
- Out of Print 18 November 2014
- Publish Country US
- Imprint Atheneum Books
- Format Hardcover
- Pages 164
- Language English