Well this was... haunting. Deep old powers in the Welsh hills, terrible family secrets, a lonely boy and his beloved dog, a convalescent protagonists who is more than even he remembers, wild grey foxes and mad farmers with shotguns. Caves under the mountains full of secrets and a magic harp and an enchanted lake. Stunning writing, clear and sharp and cold as a mountain stream, and the great chill of the whole sequence, the distance between Old One and human, and what Old Ones will do to defeat the rising Dark. Bit of a masterpiece, on the whole.