Nicholas and his sister Zelda visit a haunted house where they meet and make friends with ghosts, monsters, and ghouls--but only in riddles.
- ISBN10 0806946784
- ISBN13 9780806946788
- Publish Date 21 May 1984
- Publish Status Out of Print
- Out of Print 19 October 2003
- Publish Country GB
- Imprint HarperCollins Distribution Services
- Format Hardcover
- Pages 64
- Language English