preventing Ludwig from escaping, he was also making it impossible for anyone outside to come to his own aid. Blindly he clubbed his fist down on Ludwig's neck, spun him around, crashed another blow into the man's midsection. Suddenly Ludwig pulled away from him and ran back behind the director's desk. Walton followed him ... and stopped short as he saw the UN man pause, quiver tremulously, and topple to the floor. He sprawled grotesquely on the deep beige carpet, shook for a moment, then was still. Walton gasped for breath. His clothes were torn, he was sticky with sweat and blood, his heart was pounding from unaccustomed exertion. Ludwig's killed the director, he thought leadenly. And now Ludwig's dead. He leaned against the doorpost. He was conscious of figures moving past him, going into the room, examining FitzMaugham and the figure on the floor. "Are you all right?" a crisp, familiar voice asked. "Pretty winded," Walton admitted. "Have some water." Walton accepted the drink, gulped it, looked up at the man who had spoken. "Ludwig! How in hell's name—" "A double," the UN man said. "Come over here and look at him." Ludwig led him to the pseudo-Ludwig on the floor. It was an incredible resemblance. Two or three of the office workers had rolled the body over; the jaws were clenched stiffly, the face frozen in an agonized mask. "He took poison," Ludwig said. "I don't imagine he expected to get out of here alive. But he did his work well. God, I wish I'd been on time for once in my life!" Walton glanced numbly from the dead Ludwig on the floor to the live one standing opposite him. His shocked mind realized dimly what had happened. The assassin, masked to look like Ludwig, had arrived at 1300, and had been admitted to the director's office. He had killed the old man, and then had remained inside the office, either hoping to make an escape later in the day, or perhaps simply waiting for the poison to take effect. "It was bound to happen," Ludwig said. "They've been gunning for the senator for years. And now that Popeek was