Since childhood Caiseal Mor has been haunted by a deep, abiding obsession with the Holy Grail. As a teenager he made a personal vow to dedicate his life to the Quest. In his early twenties he set off to travel the world, following any clue that might lead him to the Sacred Treasure. After a period living near Glastonbury in England he embarked on an exhaustive study of Celtic legends and folklore.

Over the next twenty years he gained a degree in Theatre Arts, published fourteen books based on Irish tales he d collected and recorded six CDs of original music to accompany them. Among his bestselling fantasy novels are The Wanderers Series, The Wellspring Trilogy, The Watchers Series and The Tilecutters Penny. His autobiography was published in 2007 to critical acclaim.

Caiseal is an author, musician, painter, sculptor and spiritual seeker. He lives and works in Australia with his wife, the portrait artist, Helen Wells.