The country was extraordinarily deserted. Not one of the nine men had seen a living soul since they left their motor, and Willis felt certain that his dispositions had been carried out in absolute secrecy.

He crossed the fence on to the railway. By climbing half-way up the ladder of a signal he was able to see the windows of the shed over the galvanized fence. All were in darkness, and he wondered if Benson had gone on his customary expedition into Hull.

To satisfy himself on this point he hid beneath a wagon which was standing on the siding close to the gate in the fence. If the manager were returning by his usual train he would be due in a few minutes, and Willis intended to wait and see.

It was not long before a sharp footfall told that someone was coming along the lane. The unknown paused at the stile, climbed over; and, walking more carefully across the rails, approached the door. Willis, whose eyes were accustomed to the gloom, could make out the dim form of a man, showing like a smudge of intensified blackness against the obscurity beyond. He unlocked the door, passed through, slammed it behind him, and his retreating steps sounded from within. Finally another door closed in the distance and silence again reigned.

Willis crawled out from beneath his truck and once more climbed the signal ladder. The windows of Benson’s office were now lighted up, but the blinds being drawn, the inspector could see nothing within.

After about half an hour he observed the same phenomenon as Hilliard and Merriman had witnessed—the light was carried from the office to the bedroom, and a few minutes later disappeared altogether.

The ladder on which he was standing appearing to Willis to offer as good an observation post as he could hope to get, he climbed to the little platform at the top, and seating himself, leaned back against the timber upright and continued his watch.

Though he was keenly interested by his adventure, time soon began to drag. It was cramped on the little seat, and he could not move freely for fear of falling off. Then to his dismay he began to grow sleepy. He had of course been up all the previous night, and though he had dozed a little during his vigil in the deserted house, he had not really rested. He yawned, stretched himself carefully, and made a determined effort to overcome his drowsiness.

He was suddenly and unexpectedly successful. He got the start of his life, and for a moment he thought an earthquake had come. The signal post trembled and swayed while with a heavy metallic clang objects moved through the darkness near his head. He gripped the rail, and then he laughed as he remembered that railway signals were movable. This one had just been lowered for a train.

Presently it roared past him, enveloping him in a cloud of steam, which for an instant was lit bright as day by the almost white beam that poured out of the open door of the engine firebox. Then, the steam clearing, there appeared a strip of faintly lit ground on either side of the flying carriage roofs; it promptly vanished; red tail Lamps appeared, leaping away; there was a rattle of wheels over siding connections, and with a rapidly decreasing roar the visitation was past. For a moment there remained the quickly moving spot of lighted steam, then it too vanished. Once again the signal post swayed as the heavy mechanism of the arm dropped back into the “on” position, and then all was once more still.