Critical acclaim from 1963: "It is not only powerful but remarkably sophisticated." The Guardian "Weird and marvellously evocative tale of Celtic mysteries, elves, spirits and strange presences felt, mingled to make high adventure for Colin and Susan -- and peril for Susan. It is a timeless story, full of wonder and magic, terror and beauty. A fine author indeed, and perhaps one of a new generation of classics." Books and Bookmen