"_Merci, le bon vent!_" said the fisherman. Up went a mast; up went a light patch of thin white canvass, and straightway the bubbles flew fast and faster by the gunwale, and there arose a sweet gurgle from the cleaving bow.
"You can see how fast we're going by the bottom," said the boatman. I leant over the gunwale, and looked down. Oh, the marvellous brightness of that shining sea! I gazed from the boat upon the sand through the water, almost as you might through the air upon the earth from a balloon. Ghost-like fish gleamed in the depths, and their shadows followed them below upon the ribbed sea-sand. Long flowing weeds, like rich green ribbons, waved and streamed in the gently running tidal current. You could see the white pebbles and shells--here a ridge of rocks, there a dark bed of seaweed; and now and then a great flat-fish, for all the world like a burnished pot-lid set in motion--went gleaming along the bottom.
"Once," said the boatman, "all the bottom of this great bay that you are looking at was dry land, and there were cottages upon it, and an ancient chateau. That was the chateau of Armand de Chatel-morant, an old baron of these parts, a wicked man and a great magician, who had a familiar spirit, which came when he blew a horn, and who was able, by his sorceries, to rule the winds that blow. Only, once he raised a storm he could not quell; and it was that storm which made the Bay of Arcachon; for the wind blew the sand of the sea-shore up the country, like a snow-storm, and the sand-hills rolled before it; and what the wind began, the _coup de mer_ finished, and the ocean came bursting through the breach it had battered in the sand-ridges of the coast, and swallowed up the chateau and drowned the magician, and there was an end of him."
"Well," said I, "so be it; he deserved his fate."
"For many a year after the flood the baron had made," the boatman continued, "you could see, out of a boat, the pointed tops of the towers of the chateau below you, with the weather-cocks still pointing to the west, and the green seaweed hanging to them, like pennons from a ship's vanes."
"Oh! no. Ages and ages ago it rotted and rotted away; but the old men of the village have heard from their fathers that the fishermen only ventured there in calm summer weather and in good daylight; for, in the dark, look you, and when a Biscay wind was blowing, they said they heard the sounding of Chatel-morant's magic horn, and they saw his imp flying above them and wailing like a hurt seabird."