Mr. Sharp complied, and Paul descended carefully on the reef, feeling his way in the intense darkness by means of the boat-hook. He was absent ten minutes, moving with great caution, as there was the danger of his falling into the sea at every step. His friend began to be uneasy, and the whole of the jeopardy of their situation presented itself vividly to his mind in that brief space of time, should accident befall their only guide. He was looking anxiously in the direction in which Paul had disappeared, when he felt a gripe of his arm. "Breathe even with care!" whispered Paul hurriedly. "These rocks are covered with Arabs, who have chosen to remain on the dry parts of the reef, in readiness for their plunder in the morning. Thank Heaven! I have found you again; for I was beginning to despair. To have called to you would have been certain capture, as eight or ten of the barbarians are sleeping within fifty feet of us. Get on the roof with the least possible noise, and leave the rest to me." As soon as Mr. Sharp was in the boat, Paul gave it a violent shove from the rocks, and sprang on the roof at the same moment. This forced the launch astern, and procured a momentary safety. But the wind had shifted. It now came baffling, and in puffs, from the Desert, a circumstance that brought them again to leeward. "This is the commencement of the trades," said Paul, "they have been interrupted by the late gale, but are returning. Were we outside the reef, our prayers could not be more kindly answered than by giving us this very wind but here, where we are, it comes unseasonably. Ha!--this, at least, helps her!" A puff from the land filled the sails, and the ripple of the water at the stern was just audible. The helm was attended to, and the boat drew slowly from the reef and ahead. "We have all reason for gratitude! That danger, at least, is avoided. Ha! the boat is aground!" Sure enough the launch was on the sands. They were still so near the rocks, as to require the utmost caution in their proceedings. Using the spar with great care, the gentlemen discovered that the boat hung astern, and there remained no choice but patience. "It is fortunate the Arabs have no dogs with them on the rocks: you hear them howling incessantly in their camps." "It is, truly. Think you we can ever find the inlet in this deep obscurity?" "It is our only course. By following the rocks we should be certain to discover it; but you perceive they are already out of sight, though they cannot be thirty fathoms from us. The helm is free, and the boat must be clear of the bottom again. This last puff has helped us."