to click shut. Still.... Hendley reached the bottom of the stairs. Keeping close to the maze of pipes along one side, he edged forward. A shadow moved across the face of the tunnel. Hendley squeezed close to the pipes. One of them carried hot water, and he had to suppress a gasp as his hand touched the hot metal. After a long moment he moved his head out a few inches—just far enough to catch a glimpse of the opening at the end of the tunnel. A shoulder came into view, bearing the emblem of a security guard on a green sleeve. Hendley eased back against the pipes, setting his teeth against the heat from the one pipe that seared a bar of pain across his back. If the guard took one or two steps into the tunnel—or even leaned through the door to get a better angle of view—Hendley would be visible to him. Hendley breathed very slowly and silently. His legs were beginning to quiver from the strain. Either the guard didn't suspect his presence, or he was unwilling to enter the tunnel alone, making himself a vulnerable target. What had drawn the man there? Had Ann been seen leaving? Surely not—the guard's investigation would be more thorough. Had he heard a suspicious noise then, the noise Hendley had made closing and locking the outside door? Or was this simply a routine inspection? The tunnel darkened suddenly. The steel door clanked shut, sealing the tunnel off from the adjoining passage. In the dim light remaining from the tunnel's own illumination panel, Hendley stepped away from the pipes into the center of the aisle. He let out a deep breath. He was safe enough for the moment. But obviously he couldn't risk leaving the building the way he had entered. The guard might be going on his rounds—or the closing of the door might be a ruse. Frowning, Hendley tried to sort out in his memory the various functions of this utility tunnel. If he remembered correctly, it led to a large water pump station, and there were branches along the way feeding into smaller underground facilities. It should be no trick to find another way out. He could hear the water pump when he was still a good distance away from the station. It would probably be routinely guarded. He chose at random one of the branching tunnels. A few minutes later he stepped into the heating room of what he guessed was an arcade. The heating and air-conditioning unit was of a size and type designed to serve a series of small shops and offices. No one saw him when he emerged from