This was done; then Carew, to the astonishment of his crew, proceeded to bend the piping until it assumed the form of a lengthened U. Putting a bung into one end of it he poured water into it from the other end until it was full. Dipping the open end into the sea, he passed the other arm through one of the ports, so that it depended into the cabin below the level of the water-line.
"Hah! I see now; it is a syphon," exclaimed Baptiste.
"Exactly so. Now follow my plan. As soon as we sight the barque, I take the bung out of the inner arm of the syphon and allow the sea to pour in, until I bring the yacht down as near the water's edge as I safely can. Then I haul my syphon on board again and so stop the flow. We hoist signals of distress. If La Bonne Esperance won't pay any attention to us and sails by, all we have to do is to pump the water out of the yacht, and try our luck elsewhere. If the barque replies to our signals, and there can be no doubt about her intention to pick us up, I pull this cord, out comes the plug, in rushes the sea again, we jump into the dinghy, and as we are rowing off to the French vessel the old Petrel goes down. What do you think of that, Baptiste?"
"Excellent—excellent!" exclaimed the mate.
"And to avoid all chance of a hitch," continued Carew, who was interested in his work, "I am going to scuttle the yacht in another place, and lead another cord from the second plug on to the deck. Thus we will be doubly certain; for one plug may get jammed and refuse to come out, or a fish may get sucked into the hole and choke it. I have heard of such things happening."
"You are a very clever man, captain. When you do start on a job you carry it out in a thorough manner. With your pluck and ingenuity you'd make a splendid pirate, were it not for your unfortunate scruples;" and the mate sighed regretfully when he thought of the useful talents wasted on this Englishman.
At midday Carew took the latitude, and found that he had not misjudged his position. As the wind had not varied a quarter of a point since the yacht had sailed from Rio, it was almost certain that the barque would pass within a mile or so.
El Chico, who had the keenest eyes of any on board, had been sent aloft to keep a good lookout for vessels. He sat on the crosstrees, and in the course of the day reported several craft, but none answered to the description of the French barque.
Much as Carew had shrunk from the enterprise, he was now carried away by the excitement of the chase; and as the hours went by he became acutely anxious. He feared that he had sailed too far out to sea, and that the barque would pass him unobserved in the night.