it was his natural environment—his, as much as that of the laridae wheeling on white wings in the cloud-flying heavens. He looked over the watch. It seemed to be well handled—the sailors knew their business. There were armored guards at bow and stern, and the rest—clad in the plain loincloth of ordinary seamen the world over—were standing by the sail, swabbing the decks, making minor repairs and otherwise occupying themselves. Those off duty were lounging or sleeping well out of the watch's way. The helmsman kept his eye on the compass and held the tiller with a practiced hand—good, good. Captain Imazu padded up to him on bare feet. The Umlotuan wore helmet and corselet, had a sword at his side, and carried the whip of authority in one gnarled blue hand. His scarred, one-eyed face cracked in a smile. "Good morning to you, Captain Corun," he said politely. The Conahurian nodded with an amiability he had not felt for a long time. "The ship is well handled," he said. "Thanks. I'm about the only Umlotuan who's ever skippered anything bigger than a war-canoe, I suppose, but I was in the Achaeran fleet for a long time." Again the hideous but disarming smile. "I nearly met you professionally once or twice before, but you always showed us a clean pair of heels. Judging from what happened to ships that did have the misfortune to overhaul you, I'm just as glad of it." He gestured to the tiny galley below the poop deck. "How about some breakfast?" Over food which was better than most to be had aboard ship, they fell into professional talk. Like all captains, Imazu was profoundly interested in the old and seemingly insoluble problem of finding an accurate position. "Dead reckoning just won't do," he complained. "Men's estimates always differ, no matter how good they may be. There isn't even a decent map to be had anywhere." Corun mentioned the efforts of theorists in Achaera, Conahur, and other civilized states to use the Heaven-Fire's altitude to determine position north and south of a given line. Imazu was aware of their work, but regarded it as of little practical value. "You just don't see it often enough," he objected. "And most of the crew would consider it the worst sort of impiety to go aiming an instrument at it. That's one reason, I suppose, why Shorzon shipped only Umlotuans. We don't worship the Heaven-Fire—our gods all live below the clouds." He cut himself a huge quid of liangzi and stuffed it into his capacious mouth. "Anyway, it doesn't give you east and west position."