“Sartain,” said Josh, who entered heartily into the affair, so far as good wishes for its success were concerned, at the very moment when he had a most salutary care of his own back. “Sartain; we do all dat, and no t'ank asked. It no great matter to answer a hail, or to light a lantern and sling him over de bows; and if Captain Spike want to know who did it, let him find out.” Here both negroes laughed heartily, manifesting so little care to suppress their mirth, that Rose trembled lest their noise should awaken Spike. Accustomed sounds, however, seldom produce this effect on the ears of the sleeper, and the heavy breathing from the state-room, succeeded the merriment of the blacks, as soon as the latter ceased. Jack now announced his readiness to depart. Some little care and management were necessary to get into the boat noiselessly, more especially with Biddy. It was done however, with the assistance of the blacks, who cast off the painter, when Jack gave the boat a shove to clear the brig, and suffered it to drift astern for a considerable distance before he ventured to cast loose the sail. “I know Spike well,” said Jack, in answer to a remonstrance from the impatient Rose concerning his delay: “A single flap of that canvas would wake him up, with the brig anchored, while he would sleep through a salute of heavy guns if it came in regular course. Quick ears has old Stephen, and it's best to humour them. In a minute more we'll set our canvas and be off.” All was done as Jack desired, and the boat got away from the brig unheard and undetected. It was blowing a good breeze, and Jack Tier had no sooner got the sail on the boat, than away it started at a speed that would have soon distanced Spike in his yawl, and with his best oarsmen. The main point was to keep the course, though the direction of the wind was a great assistant. By keeping the wind abeam, Jack thought he should be going toward the rock of Mulford. In one hour, or even in less time, he expected to reach it, and he was guided by time, in his calculations, as much as by any other criterion. Previously to quitting the brig, he had gone up a few ratlins of the fore-rigging to take the bearings of the fire on Mulford's rock, but the light was no longer visible. As no star was to be seen, the course was a little vague, but Jack was navigator enough to understand that by keeping on the weather side of the channel he was in the right road, and that his great danger of missing his object was in over-running it. So much of the reef was above water, that it was not difficult to steer a boat along its margin. The darkness, to be sure, rendered it a little uncertain how near they were running to the rocks, but, on the whole, Jack assured Rose he had no great difficulty in getting along.