Meanwhile the saloon party on board the Thetis, having comfortably bestowed themselves in capacious basket chairs under the awning on the top of the deck-house when the yacht got under way, watched with mingled interest and amusement the strenuous pursuit of their own vessel by the Spanish torpedo boat; and when at length Milsom gave the order for the yacht’s engines to be first stopped and then sent astern, they with one accord rose to their feet and brought their glasses to bear upon the torpedo boat, intent upon seeing what would next happen. For although darkness had by this time fallen, the night was beautifully fine and clear, and the mellow lustre of the innumerable stars shed a soft light upon the scene that enabled the watchers, with the aid of their powerful night glasses, to perceive with very tolerable distinctness whatever might happen within so short a distance as a quarter of a mile, or even twice as far. Presently Jack spoke.

“She has stopped, I think,” he said; “at all events I can no longer distinguish the phosphorescent wake made by her propeller; and if that is the case we shall have no more trouble from her. Of course it would have been easy enough for us to have made this pursuit impossible, by removing her propeller when we were working at it yesterday; but the thought occurred to me that, had we done so, the removal might have been discovered, and in that case it is quite possible that suspicion, even though of a very vague and doubtful character, might have fastened upon us, with the result that at some future time, when it may be vitally important for us to repeat the trick, such precautions might be taken as would render its repetition impossible. As it is, the craft has been under steam for a couple of hours, during which, to all appearance, nothing was wrong with her. I do not think, therefore, that anyone is in the least likely to connect us with the mishap.”

“No,” agreed Milsom, “the thing was most excellently done, Jack, it could not possibly have been better managed; and the mishap will wear the aspect of an ordinary accident of the sea. You have a longer head upon you than I can boast, my lad; I should never have thought as far ahead as you did. But I think we are far enough away from that boat now to allow of our resuming our voyage.” And he signalled to the engine-room, first to “Stop”, and then to go “Full speed ahead.”

“Port your helm, Quartermaster,” he said to the helmsman, “until she heads due north, and then give her a very small touch of starboard helm—just enough to enable us to make a wide circle round that torpedo boat out yonder—until her head works round to south-west by west, when you can steady her at that. That course,” he explained to his companions, “ought to run us within sight of the light on Jutias about three bells in the middle watch.”

“And when do you suppose we shall reach our destination, Captain?” asked Don Hermoso.

“The Laguna de Cortes? Oh! about breakfast-time to-morrow morning, if we keep the boat running at full speed, and do not meet with any interruption on the way,” answered Milsom.

“Hillo!” exclaimed Jack; “see that rocket, Phil? It looks as though it might have been sent up by the torpedo boat. She will be somewhere out in that direction, won’t she?”

“Ay, there or thereabout,” answered Milsom, glancing into the compass bowl to get the bearing of the rocket. “That means that they’ve just discovered the loss of their propeller, and are in trouble about it.”

“I hope that the crew of the boat are in no danger,” exclaimed Don Hermoso anxiously. “I have no wish that they should come to harm—”

“No need to worry yourself about that, Señor,” answered Milsom. “The weather is fine, and the boat, no doubt, sound enough. The worst that is likely to happen to them is that they will have to stay where they are until something comes along and tows them into Havana.”