IT was the time of the summer solstice in the year 1266. Evening was falling on the Basilicata, the shadowy, hazy twilight of the fading midsummer day. The pale green leaves of the olive-branches hung limply from their boughs, but the great willows which drooped over the meandering tide of the Garigliano now and then stirred a feathery twig in response to the delicate touch of the evening breeze. The sun had entered the waters of ancient Liris for his evening bath, leaving his robes of crimson and gold draped in the western sky.