"I hope so, my lord," said the skipper, with a touch of dignity in his tone. "I am sorry to say that just before seven bells, when we changed watch unexpectedly, as we are doing in the engine-room, one of the extra men we've put on watch detected Mr Williams in the act of sanding the driving rod of the low-pressure cylinder of the port engine." "And what would have been the effect of that?" said Hardress, quite coolly, as though he expected the news. The words had hardly left his lips before a slight jarring shudder ran along the port side of the ship, and they felt a distinct swerve as though she had swung suddenly out of her course. "The scoundrel, he has gritted the shaft as well!" exclaimed the captain, jumping to his feet and running to the door. "Pardon, my lord," he cried, as he opened it. Then he said to the quartermaster: "Robertson, skip up to the bridge and stop her. Mr M'Niven's there." Then as the quartermaster vanished in the direction of the bridge he locked the door, and came back and said: "My lord, I'm afraid it's worse than I thought. You know what grit means in the bearings of a screw shaft. It means stopping one engine for twenty-four hours, unbolting the bearings and the thrust-blocks, and cleaning the grit out." "And I guess that's just about what was calculated upon by our friends the enemy," said President Vandel. "A delay like that would just send us waddling across the water like a duck with a lame foot; and that's how a sixteen-knotter's expected to overtake a twenty-knotter. What's happening to Mr Williams just now captain?" "Under arrest in his room, sir," replied the captain; "he's a good sailor and a good officer, but I'm afraid he's guilty. I never saw a man look more miserable than he did when I sent for him to my room. I don't know who's been working on him, or what the reason of it is at all, but there it is. He didn't confess, but he might just as well have done, for his face did it for him." "Then we are to understand, Captain Burgess," said Lord Orrel, "that, at the best, we shall be delayed at least twenty-four hours. That will make a serious difference to us, Shafto, under the circumstances." "And it may be more than that, my lord," said the captain, "because we don't know yet how much harm's done. Mr M'Niven will, of course, examine the cylinder and the shafting at once and report to me, and if the worst comes to the worst, why, we may have to go to Halifax with one engine. If we hadn't twin screws we'd be disabled altogether. Yes, you see he's stopped the port engine, and that means we've dropped down to about eight knots."