While holidaying with his friend Felix on the island of Innis na Ri in South West Ireland, Chris meets Kaia who belongs to a travelling family. Kaia was friendly with Mr O'Driscoll, the last owner of the big house where Felix's mother is caretaker. He claimed to be descended from the last kings of Ireland and was rumoured to be very rich. When O'Driscoll's descendants decide to sell the island to developers, so depriving Felix's family of a home, the children are determined to search for O'Driscoll's treasure - but they face a race against time.
Patrick Cooper was born in Wales in 1949. He studied Modern Languages at Oxford and then qualified as a social worker, but for the last twelve years he has worked in children's theatre as a puppeteer-performer, writer and director. He has had two picture books published. He is married and has three children.