Being the sixth satellite of Saturn, Titan is unpleasantly cold. It gets no heat from its major, since Saturn’s average temperature is 180° below zero F. But there are occasional volcanic areas, and in one of these, amid geysers and steaming lakes, is the only settlement of humans on Titan, New Macao, a roaring bordertown. Most of the moon remains unexplored. There are continents and islands and iron-cold seas whose vast depth as well as the tidal pull of Saturn keep unfrozen. Maps on the satellite are mostly blank, with the outlines of the continents sketched in and a few radar-located landmarks indicated. Perhaps two dozen mining companies work some of the volcanic regions. Equatoria, a continent as large as Africa, stretches from latitudes 45° north to 32° south. Udell had clearly marked on his chart the position of his Titan camp, a valley near the equator on the outskirts of Devil’s Range, a broad mountainous belt stretching across the equator for three hundred miles. So Quade brought down his camera ship, a gleaming, transparent-nosed ovoid, in a five-mile-wide shallow basin clearly of volcanic origin. Steaming geyser plumes feathered up from the rocky floor. Towering cliffs of ice ringed the valley. In the center a few shacks stood, but there was no sign of life. Though the atmosphere was breathable, Quade, remembering the mysterious virus, issued orders for continual wearing of spacesuits outside the ship. Moreover, he installed antiseptic baths in the spacelocks, in which every member of the crew had to dunk himself before reentering the vessel. “We’re not near New Macao, are we?” Wolfe asked, a wistful gleam in his blue eyes as he peered through the transparent hull. Quade grinned. “Nope. We’re on the other side of the satellite. Why? Thirsty?” “Kind of.” “Better stay away from New Macao liquor,” Quade said solemnly. “Know what plasmosin is? It’s the fibre that holds the cells, of your body together. One shot of Martian absinthe, New Macao version, and the plasmosin lets go. You fall apart. Very bad.” “Yeah?” Wolfe said, wide-eyed. “Gee, I’d like to try it.” Quade chuckled and glanced at the instrument panel. “That’s funny,” he said suddenly.