The Riddle of the Wren is a Celtic fantasy novel written by Canadian author Charles de Lint. Published in 1984, it was de Lint's first novel. The book was republished by Firebird Fantasy. The Riddle of the Wren tells the story of Minda Sealy, whom after being trapped inside a dark nightmare, journeys into other worlds to confront Ildran the Dream-master and save the Lord of the Moors.