low to the water, so that the little ship seemed to be drifting through the heart of a fire-opal as vast as the universe. The sea turned colour, from black to indigo streaked with milky bands. Flights of the small bright dragons rose flashing from the weed-beds that lay scattered on the surface in careless patterns of purple and ochre and cinnabar and the weed itself stirred with dim sentient life, lifting its tendrils to the light. For one short moment David Heath was completely happy. Then he saw that Broca had caught up a bow from under the taffrail. Heath realized that they must have fetched all their traps coolly aboard while he was in Kalruna's. It was one of the great longbows of the Upland barbarians and Broca bent its massive arc as though it had been a twig and laid across it a bone-barbed shaft. A ship was coming toward them, a slender shape of pearl flying through the softly burning veils of mist. Her sail was emerald green. She was a long way off but she had the wind behind her and she was coming down with it like a swooping dragon. "That's the Lahal," said Heath. "What does Johor think he's doing?" Then he saw, with a start of incredulous horror, that on the prow of the oncoming ship the great spiked ram had been lowered into place. During the moment when Heath's brain struggled to understand why Johor, ordinary trading skipper of an ordinary ship, should wish to sink him, Alor said five words. "The Children of the Moon." Now, on the Lahal's foredeck, Heath could distinguish four tiny figures dressed in black. The long shining ram dipped and glittered in the dawn. Heath flung himself against the stern sweep. The Ethne's golden sail cracked taut. She headed up into the wind. Heath measured his distance grimly and settled down. Broca turned on him furiously. "Are you mad? They'll run us down! Go the other way." Heath said, "There is no other way. They've got me pinned on a lee shore." He was suddenly full of a blind rage against Johor and the four black-clad priests. There was nothing to do but wait—wait and sail the heart out of his ship and hope that enough of David Heath still lived to get them through. And