"Have you ever seen the castle, Dias?"

"I have seen it, seņor. There is only one point from which it is visible. We shall go there to-morrow, it is ten miles from here. The castle lies in a rift of the rock. I should say that in ancient times this opened to the sea, but the building closed the entrance. Whatever it may have been, it does not rise above the summit of the cliff, which goes down as straight as a wall for miles on the sea-face. The rift on the land side of the castle seems to have a width of about fifty feet, and I could see openings which were, I suppose, windows. The rocks on each side are higher than the castle itself, so that anyone coming along would not see it until he looked down upon it."

"But of course it is visible from the sea, Dias?"

"It would have been visible in the old days without a doubt, seņor, but it cannot be seen now. The stones are the colour of the rocks beside them. They are stained and broken, and unless a boat went along within a very short distance none would dream that there was a break in the cliff there. I heard that from a fisherman whose boat was driven in by a gale and well- nigh lost. He said that he could see that the stones, which are very large--much larger than any of those in the remains of the buildings of the Incas--were not in regular lines."