As soon as Mrs. Conway received the box she set to work in earnest. Directly the house was still and a sufficient time had elapsed for the Miss Penfolds to have fallen asleep, she rose from the bed on which she had lain down without undressing, put on the coat and hat, and made her way noiselessly down to the library. As she kept the lock well oiled she entered noiselessly, and then locking the door behind her lighted a candle and commenced her search. On the fifth night she was rewarded by finding that the center of what looked like a solidly carved flower in the ornamentation of the mantelpiece gave way under the pressure of her finger, and at the same moment she heard a slight click. Beyond this nothing was apparent; and after trying everything within reach she came to the conclusion that it needed a second spring to be touched to reveal the entrance.  
It took her another three weeks before she found this. It was a slight projection, about as large as a button, in the inside of the chimney behind the mantel. Pressing this and the other spring simultaneously, the bookcase on the left of the fireplace suddenly swung open three or four inches. For a moment she stood breathless with excitement, hesitating before she entered; then she swung the bookcase open. There, as she had expected, was a little room seven feet long by four deep; but, to her bitter disappointment, it was bare and empty. A few scraps of paper lay on the ground, but there was no furniture, chest, or boxes in the room. The revulsion was so great that Mrs. Conway returned into the library, threw herself into a chair, and had a long cry. Then she went back into the room and carefully examined the pieces of paper lying on the ground. One of them was a portion of a letter, and she recognized at once the handwriting of Mr. Tallboys.
 
It contained only the words: "My dear Mr. Penfold—In accordance with your request I send you the—" But above was the date, which was ten days only anterior to Mr. Penfold's death. Mrs. Conway had no doubt that the word that should have followed the fragment was "will," and that this was the letter that Mr. Tallboys had sent over with that document. It was important evidence, as it showed that Mr. Penfold had been in the habit of using this place during his lifetime, and that he had entered it after he had received the will from his solicitor a few days before his death. Why should he have entered it except to put the will in a place of security? Where that place was she did not know, but she felt certain that it was somewhere within reach of her hand.
 
"If it is here it must be found," she said resolutely; "but I won't begin to look for it to-night. It must be three o'clock already, and I will think the matter over thoroughly before I begin again. It is something to have found out as much as I have. I ought to be encouraged instead of being disappointed."
 
That day she wrote to Mr. Tallboys, giving him a full account of the discovery which she had made, and inclosing the fragment of his letter. She did not renew her search for the next two nights; for her long watchfulness and excitement had told upon her, and she felt that she needed rest before she set about the second part of the search. She received a letter from Mr. Tallboys in reply to that she had sent him:
 
"MY DEAR MRS. CONWAY: I congratulate you most heartily upon the great success you have met with. I own that I have never been very hopeful, for after the thorough search we made of the room I hardly thought it likely that you would succeed when we had failed; however, you have done so, and I cannot doubt that a similar success will attend your further efforts. In a small bare room such as you describe the difficulties in the way of finding the hidden receptacle cannot be so 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.
 
"It is me, Miss Penfold—Anna Sibthorpe."
 
The door was unlocked and opened.
 
"What is it, Anna?"
 
"There is some one in the house, ma'am; I can hear them moving about down below, and I think I can hear men's voices."
 
Miss Penfold came out and listened.
 
"Yes, there is some one there," she said. "Go and call the butler and the others. I shall be ready by the time you come down."
 
In two or three minutes the servants, headed by the butler, who had armed himself with a blunderbuss that always hung in his room ready for action, came downstairs. Miss Penfold came out to meet them half-dressed. She had a pistol in her hand. The maids had armed themselves with pokers and brooms.
 
"Have you looked to the priming of your blunderbuss?" Miss Penfold asked quietly.
 
"No, ma'am."
 
"Well, then, look now," she said sharply. "What's the use of having a weapon if you don't see that it's in order?"
 
"It's all right, ma'am," the butler said, examining the priming.
 
"Well, then, come along and don't make a noise."
 
They went downstairs noiselessly, and paused when they reached the hall. The sounds came from the drawing-room. Miss Penfold led the way to the door, turned the handle, and flung it open. Three men were seen in the act of packing up some of the valuables. They started up with an exclamation. Miss Penfold fired, and there was a cry of pain. A moment later there was a roar as the blunderbuss went off, the contents lodging in the ceiling. "Without hesitating for a moment the three men made a rush to the open window, and were gone.
 
"John Wilton," Miss Penfold said sternly, "you are a fool! I give you a month's notice from to-day. Fasten up the shutters again and all go off to bed." And without another word she turned and went upstairs. As she reached the landing her sister ran out of her room in great alarm.
 
"What is the matter, Charlotte? I heard two explosions."
 
"It is nothing, Eleanor. Some men broke into the house, and we have gone down and frightened them away. I did not think it was worth while disturbing you, as you are so easily alarmed; but it is all over now, and the servants are shutting up the house again. I will tell you all about it in the morning. Go to bed again at once, or you will catch cold. Good-night."
 
Directly Miss Penfold had gone upstairs a hubbub of talk burst out from the female servants.
 
"It's disgraceful, John! With that great gun you ought to have shot them all dead."
 
"It went off by itself," John said, "just as I was going to level it."
 
"Went off by itself!" the cook said scornfully. "It never went off of itself when it was hanging above your bed. Guns never go off by themselves, no more than girls do. I am surprised at you, John. Why, I have heard you talk a score of times of what you would do if burglars came; and now here you have been and knocked a big hole in the ceiling. Why missus has twenty times as much courage as you have. She shot straight, she did, for I heard one of the men give a squalk. Oh, you men are pitiful creatures, after all!"
 
"You wouldn't have been so mighty brave, cook, if Miss Penfold and me hadn't been in front of you."
 
"A lot of use you were!" the cook retorted. "Six feet one of flesh, and no heart in it! Why, I would have knocked him down with a broom if I had been within reach of him."
 
"Yes, that we would, cook," the under-housemaid said. "I had got my poker ready, and I would have given it them nicely if I could have got within reach. Miss Penfold was just as cool as if she had been eating her breakfast, and so was we all except John."
 
John had by this time fastened up the shutter again, and feeling that his persecutors were too many for him he slunk off at once to his room; and the others, beginning to feel that their garments were scarcely fitted for the cold night air postponed their discussion of the affair until the following morning. The next morning after breakfast the servants were called into the dining-room, and Miss Penfold interrogated them closely as to whether any of them had seen strange men about, or had been questioned by any one they knew as to valuables at the Hall.
 
"If it had not been for Anna," she said, when she had finished without eliciting any information, "the house would have been robbed, and not any of us would have been any the wiser. It was most fortunate that, as she says, she happened to be awake and heard the sounds; and she acted very properly in coming quietly down to wake me. If the one man in the house," and she looked scornfully at the unfortunate butler, "had been possessed of the courage of a man the whole of them would have been shot; for they were standing close together, and he could hardly have missed them if he had tried.
 
"If that weapon had been in the hands of Anna, instead of those of John Wilton, the results would have been very different. However, John Wilton, you have been a good servant generally, and I suppose it is not your fault if you have not the courage of a mouse, therefore I shall withdraw my notice for you to leave. I shall make arrangements for the gardener to sleep in the house in future, and you will hand that blunderbuss over to him. I shall write to-day to the ironmonger at Weymouth to come over and fix bells to all the shutters, and to arrange wires for a bell from my room to that which the gardener will occupy."
 
At breakfast Miss Penfold informed her sister of what had taken place the night before.
 
"I shall write, of course, to the head constable at Weymouth to send over to inquire about it, but I have very little hope that he will discover anything, Eleanor."
 
"Why do you think that, Charlotte? You said that you were convinced you had wounded one of the men; so they ought to be able to trace him."
 
"I dare say they would if this had been an ordinary theft; but I am convinced that it was not."
 
"Not an ordinary theft! What do you mean?"
 
"I have no doubt in my mind, Eleanor, that it was another attempt to discover the will."
 
"Do you think so?" Eleanor said in an awed voice. "That is terrible. But you said the men were engaged in packing up the candlesticks and ornaments."
 
"Oh, I believe that was a mere blind. Of course they would wish us to believe they were simply burglars, and therefore they acted as such to begin with. But there has never been any attempt on the house during the forty years we have lived here. Why should there be so now? If Anna had not fortunately heard those men I believe that when they had packed up a few things to give the idea that they were burglars, they would have gone to the library and set to to ransack it and find the will."
 
"But they would never have found it, Charlotte. It is too well hidden for that."
 
"There is no knowing," Miss Penfold said gloomily. "So long as it is in existence we shall never feel comfortable. It will be much better to destroy it."
 
"No, no!" Eleanor exclaimed. "We agreed, Charlotte, that there was no reason why we should assist them to find it; but that is altogether a different thing from destroying it. I should never feel happy again if we did."
 
"As for that," Miss Penfold said somewhat scornfully, "you don't seem very happy now. You are always fretting and fidgeting over it."
 
"It is not I who am fancying that these burglars came after the will," Eleanor answered in an aggrieved voice.
 
"No; that is the way with timid people," Miss Penfold said. "They are often afraid of shadows, and see no danger where danger really exists. At any rate, I am determined to see whether the will really is where we suppose it to be. If it is I shall take it out and hide it in the mattress of my bed. We know that it will be safe there at any rate as long as I live, though I think it wiser to destroy it."
 
"No, no," Eleanor exclaimed; "anything but that. I sleep badly enough now, and am always dreaming that Herbert is standing by my bedside with a reproachful look upon his face. I should never dare sleep at all if we were to destroy it."
 
"I have no patience with such childish fancies, as I told you over and over again," Miss Penfold said sharply. "If I am ready to take the risk of doing it, I do not see that you need fret about it. However, I am ready to give in to your prejudices, and indeed would rather not destroy it myself if it can be safely kept elsewhere. At any rate I shall move it from its hiding-place. We know that it is there and nowhere else that it will be searched for, and with it in my room we need have no more uneasiness. I can unsew the straw pailliasse at the bottom of my bed, and when it is safely in there I shall have no fear whatever."
 
"Of course you can do as you like, Charlotte," Eleanor said feebly; "but for my part I would much rather go on as we are. We don't know now that the will really exists, and I would much rather go on thinking that there is a doubt about it."
 
"Very well, then; go on so, Eleanor. You need ask no questions of me, and I shall tell you nothing. Only remember, if I die before you don't part with the pailliasse on my bed."
 
Mrs. Conway thought a good deal during the day about the events of the night before, and determined to be more cautious than ever in her operations; for she thought it probable that Miss Penfold would be even more wakeful and suspicious than before. She would have left the search alone for a few days had it not been for the idea that had taken her from her bed the night before. It had struck her then as possible that the spring opening the secret closet might be in the chimney behind it, and that it was necessary to touch this from the outside before opening the door of the secret room.
 
She was convinced that had there been a spring in the room itself she must have discovered it, but it never before struck her that it might be at the back of the closet. She felt that she must satisfy herself on this point whatever the risk of discovery. Accordingly at the usual hour she made her way downstairs. She had put the key in the door, and was in the act of turning it when she heard a noise upstairs. She opened the door and stood looking up the stairs. In a moment she saw a light, and directly afterward Miss Penfold appeared at the top holding a candle in her hand. Knowing she was as yet unseen, Mrs. Conway entered the library and closed the door behind her. Then she hurried to the fireplace, touched the two springs, pulled the bookcase open and entered the secret chamber, and closed the bookcase behind her.
 
She had often examined the lock, thinking that the secret spring of the closet might be concealed here. It was a large old-fashioned one, and moved two bolts, one at the top of the door and one at the bottom. These she had already discovered could be easily opened from the inside. She imagined that Miss Penfold was merely going round the house to see that all was secure, and she had, contrary to her practice, taken the key from the door of the library in order that Miss Penfold might enter it if she chose. But the thought now flashed across her that possibly she might intend to open the secret room; and to prevent this she now thrust the barrel of the pistol she carried in between the back of the bolt and the piece of iron against which it shot, so that the action of the springs could not throw it out of its place.
 
Breathlessly she listened. Presently she heard a sharp click in the wall behind her. She had scarcely time to wonder what this meant when she heard a sound in the lock close to her. It was repeated again and again. Then she felt a slight tremor of the door as if somebody was trying to shake it. Her heart almost stood still. Miss Penfold was evidently trying to open the chamber; and, though she knew the lock could not open so long as she held the pistol in the place, she felt her breath coming fast and her heart............