The Stone of Gardar: The First Trilogy of 'Guardianquest'

Peter and Sarah are on holiday in Wales with their Aunt Myf. On a visit to St. David’s, Peter discovers a mysterious stone. This proves to be a lost treasure of the Ellyllon, Elves, of Arx Emain. The Elves, led by Gwyn-ap-Nudd and their GUARDIAN, Anir, wish the return of their Stone, but there are dark forces who desire it also, the chief of these being Arddu, the Dark One, who dwells with many fearsome allies under the Prescelly Mountains. Peter, Anir, and the Ellyllon will have to fight them, in order to win back their Stone!