A bright, sunny day in May, and a new job for me. I found the room in the basement of police headquarters—a big room, with freshly stenciled letters D F C on the door, and an unholy conglomeration of tubes, wires and dials bulking large in one corner. A bright young police cadet sat at a desk in the center of the room. "Are you Mr. Forsdon?" I nodded, and dumped my bag beside the desk. "Captain Marks is waiting for you," he said and jerked his head toward a door to the rear. Captain Marks had hi