Barrent left his store at eleven o'clock in the evening. He wanted time for a stroll around Tetrahyde before going to the service, which began at midnight. He started his walk with a definite sense of well-being. And yet, because of the irrational and unexpecting nature of Omega, he almost died before reaching the Wee Coven on Kirkwood Drive. Chapter Seven It had turned into a hot, almost suffocatingly humid night when Barrent began his walk. Not the faintest breath of air stirred along the darkened streets. Although he was wearing only a black mesh shirt, shorts, gunbelt, and sandals, Barrent felt as if he were wrapped in a thick blanket. Most of the people of Tetrahyde, except for those already at the Covens, had retired to the coolness of their cellars. The dark streets were nearly deserted. Barrent walked on, more slowly. The few people he met were running to their homes. There was a sense of panic in that silent, dogged sprint through heat which made walking difficult. Barrent tried to find out what the matter was, but no one would stop. One old man shouted over his shoulder, "Get off the street, idiot!" "Why?" Barrent asked him. The old man snarled something unintelligible and hurried on. Barrent kept on walking, nervously fingering the butt of his needlebeam. Something was certainly wrong, but he had no idea what it was. His nearest shelter now was the Wee Coven, about half a mile away. It seemed best to keep on moving in that direction, staying alert, waiting to see what was wrong. In a few minutes, Barrent was alone in a tightly shuttered city. He moved into the center of the street, loosened the needlebeam in its holster, and prepared for attack from any side. Perhaps this was some special holiday like Landing Day. Perhaps Free Citizens were fair game tonight. Anything seemed possible on a planet like Omega. He thought he was ready for any possibility. But when the attack came, it was from an unexpected quarter. A faint breeze stirred the stagnant air. It faded and returned, stronger this time, perceptibly cooling the hot streets. Wind rolled off the mountains of the interior and swept through the streets of Tetrahyde, and Barrent could feel the perspiration on his chest and back begin to dry. For a few minutes, the climate of Tetrahyde was as pleasant as anything he could imagine. Then the temperature continued to fall. It dropped rapidly. Frigid air swept in from the distant mountain slopes, and the temperature fell through the seventies into the sixties. This is ridiculous, Barrent thought to himself. I'd better get to the Coven. He walked more rapidly, while the temperature plummeted. It passed through the forties into the low thirties. The first glittering signs of frost appeared on the streets. It can't go much lower, Barrent thought. But it could. An angry winter wind blew through the streets, and the temperature dropped into the twenties. Moisture in the air began forming into sleet.