In 425 A.D., while walking along the Welsh seashore, sixteen-year-old Corwin discovers a magical shell that leads him to Nia, a mermyd seeking his help to save her home, the long-lost city of Atlantis which still exist under the sea.
- ISBN10 0064408094
- ISBN13 9780064408097
- Publish Date 2 April 2002 (first published 1 April 2002)
- Publish Status Out of Stock
- Out of Print 11 September 2008
- Publish Country US
- Imprint Avon Books
- Format Paperback
- Pages 240
- Language English