The work kept on without intermission until one o’clock, when the men knocked off for dinner. At two they began again, and worked steadily all through the afternoon until past seven. During all that time only two incidents, both trifling, occurred to relieve the monotony of the proceedings. Early in the forenoon Bulla appeared, and under his instructions the end of the flexible hose from the crude oil tank was carried aboard and connected by a union to a pipe on the lower deck. A wheel valve at the tank was turned, and Merriman could see the hose move and stiffen as the oil began to flow through it. An hour later the valve was turned off, the hose relaxed, the union was uncoupled and the hose, dripping black oil, was carried back and left in its former place on the wharf. The second incident was that about three o’clock Captain Beamish and Bulla left the ship together and went out through the shed.

Merriman was now horribly tired, and his head ached intolerably from the strain and the air of the barrel, which had by this time become very impure. But he reflected that now when the men had left was the opportunity of the conspirators. The time for which he had waited was approaching, and he nerved himself to resist the drowsiness which was stealing over him and which threatened the success of his vigil.

But hour after hour slowly dragged past and nothing happened. Except for the occasional movement of one of the crew on the ship, the whole place seemed deserted. It was not till well after ten, when dusk had fallen, that he suddenly heard voices.

At first he could not distinguish the words, but the tone was Bulla’s, and from the sounds it was clear the engineer and some others were approaching. Then Beamish spoke:

“You’d better keep your eyes open anyway,” he said. “Morton says they only stayed at work about a week. They’re off somewhere now. Morton couldn’t discover where, but he’s trying to trace them.”

“I’m not afraid of them,” returned the manager’s voice. “Even if they found this place, which of course they might, they couldn’t find out anything else. We’ve got too good a site.”

“Well, don’t make the mistake of underestimating their brains,” counseled Beamish, as the three men moved slowly down the wharf. Merriman, considerably thrilled, watched them go on board and disappear into the captain’s cabin.

So it was clear, then, that he and Hilliard were seriously suspected by the syndicate and were being traced by their spy! What luck would the spy have? And if he succeeded in his endeavor, what would be their fortune? Merriman was no coward, but he shivered slightly as he went over in his mind the steps of their present quest, and realized how far they had failed to cover their traces, how at stage after stage they had given themselves away to anyone who cared to make a few inquiries. What fools, he thought, they were not to have disguised themselves! Simple disguises would have been quite enough. No doubt they would not have deceived personal friends, but they would have made all the difference to a stranger endeavoring to trace them from descriptions and those confounded photographs. Then they should not have travelled together to Hull, still less have gone to the same hotel. It was true they had had the sense to register under false names, but that would be but a slight hindrance to a skillful investigator. But their crowning folly, in Merriman’s view, was the hiring of the boat and the starting off at night from the docks and arriving back there in the morning. What they should have done, he now thought bitterly, was to have taken a boat at Grimsby or some other distant town and kept it continuously, letting no one know when they set out on or returned from their excursions.

But there was no use in crying over spilt milk. Merriman repeated to himself the adage, though he did not find it at all comforting. Then his thoughts passed on to the immediate present, and he wondered whether he should not try to get out of the barrel and emulate Hilliard’s exploit in boarding the Girondin and listening to the conversation in the captain’s cabin. But he soon decided he must keep to the arranged plan, and make sure nothing was put ashore from the ship under cover of darkness.

Once again ensued a period of waiting, during which the time dragged terribly heavily. Everything without was perfectly still, until at about half past eleven the door of the captain’s cabin opened and its three occupants came out into the night. The starboard deck light was on and by its light Merriman could see the manager take his leave, cross the gangway, pass up the wharf and enter the shed. Bulla went down towards his cabin door and Beamish, snapping off the deck light, returned to his. In about fifteen minutes his light also went out and complete darkness and silence reigned.