Four children set out to rescue a sorceress held captive in a parallel world.
- ISBN10 0027858405
- ISBN13 9780027858402
- Publish Date October 1987
- Publish Status Unknown
- Publish Country GB
- Publisher Prentice Hall (a Pearson Education company)
- Imprint Prentice Hall & IBD
- Format Hardcover
- Pages 231
- Language English