Grandpa tells Louie and Mary Ann of the dreadful Halloween night that turned him into an old man.
- ISBN10 0590333658
- ISBN13 9780590333658
- Publish Date 1 October 1988 (first published 1 August 1980)
- Publish Status Out of Print
- Out of Print 18 July 2013
- Publish Country US
- Imprint Scholastic
- Format Paperback (US Trade)
- Language English