That's putting it in a few words."

"What an extraordinary thing! I suppose there are no disused mines, are there, on the hills? I don't think you quite run to anything so formidable as a precipice?"

"No; the path the girl must have taken had no pitfalls of any description; it is just a track over wild, bare hillside, far, even from a byroad. One may walk for miles without meeting a soul, but it is perfectly safe."

"And what do people say about it?"

"Oh, they talk nonsense—among themselves. You have no notion as to how superstitious English cottagers are in out-of-the-way parts like mine. They are as bad as the Irish, every whit, and even more secretive."

"But what do they say?"

"Oh, the poor girl is supposed to have 'gone with the fairies,' or to have been 'taken by the fairies.' Such stuff!" he went on, "one would laugh if it were not for the real tragedy of the case."

Dyson looked somewhat interested.

"Yes," he said, "'fairies' certainly strike a little curiously on the ear in these days. But what do the police say? I presume they do not accept the fairy-tale hypothesis?"

"No; but they seem quite at fault. What I am afraid of is that Annie Trevor must have fallen in with some scoundrels on her way. Castletown is a large seaport, you know, and some of the worst of the foreign sailors occasionally desert their ships and go on the tramp up and down the country. Not many years ago a Spanish sailor named Garcia murdered a whole family for the sake of plunder that was not worth sixpence. They are hardly human, some of these fellows, and I am dreadfully afraid the poor girl must have come to an awful end."

"But no foreign sailor was seen by anyone about the country?"

"No; there is certainly that; and of course country people are quick to notice anyone whose appearance and dress are a little out of the common. Still it seems as if my theory were the only possible explanation."

"There are no data to go upon," said Dyson, thoughtfully. "There was no question of a love affair, or anything of the kind, I suppose?"

"Oh, no, not a hint of such a thing. I am sure if Annie were alive she would have contrived to let her mother know of her safety."

"No doubt, no doubt. Still it is barely possible that she is alive and yet unable to communicate with her friends. But all this must have disturbed you a good deal."

"Yes, it did; I hate a mystery, and especially a mystery which is probably the veil of horror. But frankly, Dyson, I want to make a clean breast of it; I did not come here to tell you all this."

"Of course not," said Dyson, a little surprised at Vaughan's uneasy manner. "You came to have a chat on more cheerful topics."

"No, I did not. What I have been telling you about happened a month ago, but something which seems likely to affect me more personally has taken place within the last few days, and to be quite plain, I came up to town with the idea that you might be able to help me. You recollect that curious case you spoke to me about on our last meeting; something about a spectacle-maker."

"Oh, yes, I remember that. I know I was quite proud of my acumen at the time; even to this day the police have no idea why those peculiar yellow spectacles were wanted. But, Vaughan, you really look quite put out; I hope there is nothing serious?"

"No, I think I have been exaggerating, and I want you to reassure me. But what has happened is very odd."

"And what has happened?"

"I am sure that you will laugh at me, but this is the story. You must know there is a path, a right of way, that goes through my land, and to be precise, close to the wall of the kitchen garden. It is not used by many people; a woodman now and again finds it useful, and five or six children who go to school in the village pass twice a day. Well, a few days ago I was taking a walk about the place before breakfast, and I happened to stop to fill my pipe just by the large doors in the garden wall. The wood, I must tell you, comes to within a few feet of the wall, and the track I spoke of runs right in the shadow of the trees. I thought the shelter from a brisk wind that was blowing rather pleasant, and I stood there smoking with my eyes on the ground. Then something caught my attention. Just under the wall, on the short grass; a number of small flints were arranged in a pattern; something like this": and Mr. Vaughan caught at a pencil and piece of paper, and dotted down a few strokes.

"You see," he went on, "there were, I should think, twelve little stones neatly arranged in lines, and spaced at equal distances, as I have shown it on the paper. They were pointed stones, and the points were very carefully directed one way."

"Yes," said Dyson, without much interest, "no doubt the children you have mentioned had been playing there on their way from school. Children, as you know, are very fond of making such devices with oyster shells or flints or flowers, or with whatever comes in their way."

"So I thought; I just noticed these flints were arranged in a sort of pattern and then went on. But the next morning I was taking the same round, which, as a matter of fact, is habitual with me, and again I saw at the same spot a device in flints.