About sunset of the fifth day, though it was bright and beautiful, the hunter's cunning detected the first subtle signs of a coming storm. He looked about him to see what provision was needed to meet and weather its onset. On the swamp side the loftiest cypresses, should the wind bring any of them down, would not more than cast the spray of their fall as far as his anchorage. The mass of willows on the prairie side was nearer, but its trees stood low,--already here and there the branches touched the water; the hurricane might tear away some boughs, but could do no more. He shortened the anchor-rope, and tried the hold of the anchor on the bottom to make sure the lugger might not swing into the willows, for in every fork of every bough was a huge dark mass of serpents plaited and piled one upon another, and ready at any moment to glide apart towards any new shelter that might be reached. While eye and hand were thus engaged, the hunter's ear was attentive to sounds that he had been hearing for more than an hour. These were the puff of 'scape-pipes and plash of a paddle-wheel, evidently from a small steamer in the Company Canal. She was coming down it; that is, from the direction of the river and the city. Whither was she bound? To some one of the hundred or more plantations and plantation homes that the far-reaching crevasse had desolated? Likely enough. In such event she would not come into view, although for some time now he had seen faint shreds of smoke in the sky over a distant line of woods. But it filled him with inward tremors to know that if she chose to leave the usual haunts of navigation on her left, and steam out over the submerged prairies and the lake, and into the very shadow of these cypresses, she could do it without fear of a snag or a shallow. He watched anxiously as the faint smoke reached a certain point. If the next thin curl should rise farther on, it would mean safety. But when it came it seemed to be in the same place as the last; and another the same, and yet another the same: she was making almost a straight line for the spot where he stood. Only a small low point of forest broke the line, and presently, far away, she slowly came out from behind it. CHAPTER XVIII. THE TORNADO. The Acadian stooped at once and with a quick splash launched his canoe. A minute later he was in it, gliding along and just within the edge of the forest where it swept around nearly at right angles to the direction in which the steamboat was coming. Thus he could watch the approaching steamer unseen, while every moment putting distance between himself and the lugger.