great as those you have already overcome.  You are perfectly correct in your supposition that the fragment you sent me was part of the letter that I sent over with the will to Mr. Penfold by my clerk.  I have compared it with the copy in my letter book, and find that it is the same.  As you say, this letter proves conclusively that Mr. Penfold was in this secret room after he received the will, and one can assign no reason for his going there unless to put the will away in what he considered a secure hiding-place.  That it is still somewhere there I have no doubt whatever, and I shall await with much anxiety news as to your further progress.”

Thinking the matter over, Mrs. Conway had come to the conclusion that the hiding-place could only be under one of the stone flags of the floor or in the wall against the fireplace, or rather in that part of it above the fireplace.  There would not be thickness enough in the walls separating the secret chamber from the passage or the rooms on either side of it; but the chimney would not be of the same width as the open fireplace below, and there might well be a space there sufficient for a good-sized closet.  It was here, therefore, that she determined to begin her search.  The next night, then, after touching the springs and entering the secret chamber, she began carefully to examine each stone in the wall next the fireplace at a distance about four feet above the ground.

In five minutes she uttered an exclamation of satisfaction.  One of the stones, above eighteen inches square, although like the rest fitting closely to those adjoining it, was not, like the others, bedded in cement.  So close was the join that it needed a close inspection to see that it was different from those around it.  Still, upon close examination, it was evident that it was not cemented in.  Taking out a penknife from her pocket, she found that the joint was too close even to allow this to be inserted for any distance.  There was no keyhole or any other visible means of opening it, and she searched the walls in vain for any hidden spring.

For a whole week she continued the search, but without the slightest success, and at last began almost to despair; for at the end of that time she was convinced that she had passed her fingers again and again over every square inch of the floor and walls within her reach.  Completely worn out with her sleepless nights, she determined to take a little rest, and to abstain altogether for a few nights from the search.  On the third night, however, an idea suddenly occurred to her.  She rose at once, dressed herself, and was about to go downstairs, when she thought that she heard a noise below.  She returned at once to her room, hid away her hat and coat, and again went to the top of the stairs and listened.

Yes, she had not been mistaken; she distinctly heard sounds below, and, she thought, the murmur of men’s voices.  After a moment’s thought she returned again to her room, took off her dress and threw a shawl round her shoulders, and then stole quietly down the stairs to the next floor and knocked gently at Miss Penfold’s door.  She repeated the knock two or three times, and then heard Miss Penfold’s voice asking who was there.  She did not speak, but knocked again.  This time the voice came from the other side of the door.