But he went to the inner side of a great slab that lay wedged against the wall of the chasm, and, stooping there, dragged out rock after rock, cunningly piled so that the waves could not displace them, until a small opening was disclosed behind the leaning slab. It was no more than three feet high, and we had to creep in on our hands and knees, which my grandfather, from his size and stiffness, found no easy matter.
The tunnel led straight in for a space of twenty feet or so, and then struck upwards, with a very rough floor which made no easy crawling ground, and a roof set with ragged rocks for unwary heads. The little light that came in round the corner of the slab in the dark chasm very soon left us, and we crawled on in the dark, hoping, one of us at all events, that the road was not a long one. And suddenly we breathed more freely and found a welcome space above our heads.
Uncle George struck flint and steel and lit a candle, and we found ourselves in a long narrow chamber, which looked just a fault in the rocks, or the space out of which the softer stuff had sunk away. The roof we could not see, but from the slope of the walls on either side I thought they probably met at a point a great way up, and the narrow crack of a cave ran far beyond our sight.
"My Boutiques," said Uncle George, "and no man—no living man but myself has ever been here till now, so far as I know." And round the walls we saw a very large number of neatly piled kegs and packages, at which my grandfather said, "Ah ha, mon beau!" and Uncle George smiled cheerfully in the candle-light.
"The Great Boutiques lie over there," he said, pointing. "There are communications, high up along the cross shelves. But they need not trouble you. I am quite certain no man but myself knows them. So if you hear the waves tumbling about in the big cave you don't need to be frightened."
"And how far does this go?" asked my grandfather, trying to see the end.
"Right through the Eperquerie. It runs into a water cave there. Its mouth is below tide level, but sometimes the light comes through. If you want brandy, Phil, broach a keg. If you want more tobacco, open a package."
"And water?" asked Carette.
"About fifty yards along there on the right in a hollow place. You can't miss it."
"Keep your hearts up, my children," said my grandfather. "You will be quite safe here. Our work lies outside, and we must get back. George will come to you as soon as the way is clear. God be with you!"