Having no success, she goes again next morning, and her husband meets her, as he has told us, as she comes out. She promises him then not to go there again, but two days afterwards the hope of getting rid of those dreadful neighbours was too strong for her, and she made another attempt, taking down with her the photograph which had probably been demanded from her. In the midst of this interview the maid rushed in to say that the master had come home, on which the wife, knowing that he would come straight down to the cottage, hurried the inmates out at the back door, into the grove of fir-trees, probably, which was mentioned as standing near. In this way he found the place deserted. I shall be very much surprised, however, if it is still so when he reconnoitres it this evening. What do you think of my theory?”

“It is all surmise.”

But at least it covers all the facts. When new facts come to our knowledge which cannot be covered by it, it will be time enough to reconsider it. We can do nothing more until we have a message from our friend at Norbury.”

But we had not a very long time to wait for that. It came just as we had finished our tea.

The cottage is still tenanted [ it said ]. Have seen the face again at the window. Will meet the seven-o'clock train and will take no steps until you arrive.

He was waiting on the platform when we stepped out, and we could see in the light of the station lamps that he was very pale, and quivering with agitation.

“They are still there, Mr. Holmes,” said he, laying his hand hard upon my friend's sleeve. “I saw lights in the cottage as I came down. We shall settle it now once and for all.”

“What is your plan, then?” asked Holmes as he walked down the dark tree-lined road.

“I am going to force my way in and see for myself who is in the house. I wish you both to be there as witnesses.”

“You are quite determined to do this in spite of your wife's warning that it is better that you should not solve the mystery?”

“Yes, I am determined.”

Well, I think that you are in the right. Any truth is better than indefinite doubt. We had better go up at once. Of course, legally, we are putting ourselves hopelessly in the wrong; but I think that it is worth it.”

It was a very dark night, and a thin rain began to fall as we turned from the highroad into a narrow lane, deeply rutted, with hedges on either side. Mr. Grant Munro pushed impatiently forward, however, and we stumbled after him as best we could.

“There are the lights of my house,” he murmured, pointing to a glimmer among the trees. “And here is the cottage which I am going to enter.”

We turned a corner in the lane as he spoke, and there was the building close beside us. A yellow bar falling across the black foreground showed that the door was not quite closed, and one window in the upper story was brightly illuminated. As we looked, we saw a dark blur moving across the blind.

“There is that creature!” cried Grant Munro. “You can see for yourselves that someone is there.