Douglas’s face became drawn, and his eyes took on a very strained look, as he realised what it would mean if he could not get the Janequeo off; the Peruvians would give very short shrift to a body of men who had been caught in the attempt to torpedo their fleet. Moreover, he had heard certain gruesome stories from the Chilian seamen to the effect that some of the half-caste troops which the Peruvians had with them were rather addicted to the pastime of torturing any prisoners who might be unlucky enough to fall into their hands—a relic, undoubtedly, of the customs of their Indian ancestors.

After the engines had been stopped, Jim called a hasty council of the crew, consulting with them as to what was best to be done. They could not possibly force the boat over the chain, because, even were the engines powerful enough, the Janequeo would break her back in the process.

“If only we had a couple of good strong files we might manage even yet,” whispered Douglas, leaning over the side and feeling at the chain. “The links are not more than half an inch thick, and we could soon cut them. Does anybody know whether there are any good stout files aboard?”

As he ceased speaking a man dived down through the tiny engine-room hatch, and presently reappeared, bearing in his hands two large files.

“We have these, señor,” he whispered excitedly to Jim; “they were brought on board this morning from the Blanco, when I was doing some repairs to the engines, and I forgot to take them back before we started. How will they do?”

Douglas eagerly seized the tools and ran his thumb along the edges. They were very rough and coarse, being hardly worn at all, and were just what was wanted for the purpose. Given sufficient time, and immunity from detection, the work of getting clear of the chain by filing it through would be easy.

“That’s the very thing, El Lobo,” ejaculated Douglas in a low voice. “Now, start on the job at once. Let one man cut the upper side of the link, and one the lower, and we shall be free in next to no time. Who will take first spell with me?”

Every man silently held out his hand for the other file, and Jim selected a fellow of herculean proportions to take first turn with him. In a few seconds the low rasping sound of the rapidly moving files broke the stillness of the night, and seemed preternaturally loud by comparison with that stillness. The remaining members of the crew concentrated all their powers in the act of listening, so that they might give instant warning to the workers, should the noise appear to attract any attention from the shore.

Jim and his fellow-labourer were soon bathed in sweat, while Douglas’s hands, unaccustomed to such toil, grew red and raw and blistered under the friction; for the files, as is quite usual in engineering departments, were unprovided with wooden handles over the rat-tail shank. Moreover, the task threatened to be long and difficult, in consequence of the awkwardness of the conditions. Jim’s spell of work came to an end after a quarter of an hour, however, and another couple of men took their places at the chain. But they had not been working more than five minutes when there was a heavy splash, followed by a cry of disappointment from both men.

It appeared that, while working, the two files had suddenly met in the middle of a stroke, with the result that one of them had been knocked out of its user’s hand and had gone overboard. This was a serious loss, indeed, and one that might cost the whole of them their lives; but, as Jim said, it was no use crying over spilt milk, the file was gone, and there was an end of it. The other man must work doubly hard, that was all. Meanwhile, he went down into the engine-room and prowled round to see whether, by some lucky chance, there might not be another file lying about. He was successful in finding a small one, but it was very much worn, and not likely to be of much use; nevertheless, in the hands of a strong man it might still be made to cut a little. He immediately took it up on deck and gave it to one of the crew. To his great relief, he found that one part of the chain was nearly severed. By the time that it was entirely cut through, the lower part of the link was half-severed; and then it was but a short job to completely cut it with the large file.