Caldecott sets her Bronze Age inhabitants of northern Britain to chattering in a rather dumpy modern lingo--in order to expound some filmy but energetic speculation concerning the ancient Stone Circles whose ruins are scattered about the scepter'd isle. Instrument of some pioneering divination is the girl Kyra, who is urged by her brother Karne to spy on the encircled meditations of the good old priest, Maal. Kyra, it seems, has unusual psychic powers. Exclaims Karne: ""There's no end to the things we can do with a talent like that!"" Maal seems to know a good thing too, because when the new priest and his gang of ""Strangers"" show up, Maal hurriedly sets about teaching Kyra some priestly secrets before he is vanquished by the magic of Wardyke, the new priest. (Maal had been neglecting magic for spiritual pursuits.) Kyra then takes a fantastic dream journey to the Lords of the Sun, where she experiences the diversities and then the unity of the One, from which, and by which, all the Circles are joined. Ah, yes. A whirling round of psychic ponderation, but--as fiction--stone-cold deadly.