"This is indeed blessed tidings! and no gratitude can ever repay the debt we owe you, Mr. Powis!" The puffs of air now required all the attention of Paul, for they again became variable, and at last the wind drew directly ahead in a continued current for half an hour. As soon as this change was felt, the sails were trimmed to it, and the boat began to stir the water under her bows. "The shift was so sudden, that we cannot be mistaken in its direction," Paul remarked; "besides, those cries still serve as pilots. Never was uproar more agreeable." "I feel the bottom with this spar!" said Mr. Sharp suddenly. "Merciful Providence protect and shield the weak and lovely----" "Nay, I feel it no longer: we are already in deeper water." "It was the rock on which the seamen stood when we entered!" Paul exclaimed, breathing more freely. "I like those voices settling more under our lee, too. We will keep this tack" (the boat's head was to the northward) "until we hit the reef, unless warned off again by the cries." The boat now moved at the rate of five miles in the hour, or faster than a man walks, even when in quick motion. Its rising and falling denoted the long heavy swell of the ocean, and the wash of water began to be more and more audible, as she settled into the sluggish swells. "That sounds like the surf on the reef," continued Paul; "every thing denotes the outside of the rocks." "God send it prove so!" "That is clearly a sea breaking on a rock! It is awkwardly near, and to leeward, and yet it is sweet to the ear as music." The boat stood steadily on, making narrow escapes from jutting rocks, as was evinced by the sounds, and once or twice by the sight even; but the cries shifted gradually, and were soon quite astern. Paul knew that the reef trended east soon after passing the inlet, and he felt the hope that they were fast leaving its western extremity, or the part that ran the farthest into the ocean; after effecting which, there would be more water to leeward, his own course being nearly north, as he supposed. The cries drew still farther aft, and more distant, and the sullen wash of the surf was no longer so near as to seem fresh and tangible. "Hand me the lead and line, that lie at the foot of the mast, it you please," said Paul. "Our water seems sensibly to deepen, and the seas have become more regular." He hove a cast, and found six fathoms of water; a proof, he thought, that they were quite clear of the reef. "Now, dear Mr. Effingham, Miss Effingham, Mademoiselle," he cried cheerfully, "now I believe we may indeed deem ourselves beyond the reach of the Arabs, unless a gale force us again on their inhospitable shores." "Is it permitted to speak?" asked Mr. Effingham, who had maintained a steady but almost breathless silence. "Freely: we are quite beyond the reach of the voice; and this wind, though blowing from a quarter I do not like, is carrying us away from the wretches rapidly."