 Clarkham had disappeared after the performance too, but he had left Waltiri a book and the key to his house, which Waltiri had never used.The book's present story follows the experiences of a young man named Michael Perrin, a would be poet, who meets Waltiri two months before his death, and to whom Waltiri gives the book and the key.Following the instructions on a piece of paper he found inserted in the book, Perrin enters Clarkham's house, which has been vacant for decades, and soon finds himself in Sidhedark, a world inhabited by a powerful race of beings calling themselves the Sidhe (pronounced "shee").