"Now, the question in my mind, Roberts, is which would be easier—to cut a slit in the curtain, or to bore a hole in the shutter, or to take a brick out carefully from the side wall and then to deepen the hole until we got to the wall-paper, and then make a slight hole there?"
Roberts looked at her with astonishment. "Do you really mean it, miss?"
"Certainly I mean it; it seems to me that our only chance of ever finding Walter is to overhear those men's talk."
"Then, miss, I should say that the simplest way would be to cut a window pane out."
"Yes; but, you see, it is pretty certain that that curtain will not be drawn until they come in, and they would notice it at once. If we took out a pane in the front window the shutter would prevent our seeing or hearing, and the man would be sure to notice the pane was missing as he walked up from the gate to the house."
"I should say, miss, that the best plan would be for me to manage to get into the house some time during the day and to hide in that room, under the table or sofa or somewhere, and listen to them."
She shook her head.
"In the first place, Roberts, you would certainly be murdered if they found you there."
"I would take my chance of that, miss; and you may be sure that I would take a brace of the General's pistols with me, and they would not find it such easy work to get rid of me."
"That may be so," Netta said, "but if in the struggle you shot them both, our last chance of ever hearing of Walter would be gone. You yourself might be tried for murder, and it would be assumed, of course, that you were a burglar; for the explanation that you had broken into the house only to hear a conversation would scarcely be believed. Moreover, you must remember that we don't know how often these men meet. Simcoe has not been there since you tracked him there six months ago, and the only thing we have since found out is that the man I saw him with in the park is the man who lives in that house. It would never do for you to make an entrance into the house night after night and week after week, to run the risk of being detected there, or seized as you entered, or caught by the police as a burglar. No, as far as I can see, the only safe plan is to get out a brick very carefully in the side wall and to make a hole behind it through the paper. It might be necessary to make an entry into the house before this was done, so as to decide which was the best spot for an opening. A great deal would depend upon the paper in the room. If it is a light paper, with only a small amount of pattern upon it, any hole large enough to see through might be noticed. If it is a dark paper, well covered, a hole might be made without any fear of its catching the eye. You see, it must be a rather large hole, for, supposing the wall is only nine inches thick, a person standing outside could not see what was passing inside unless the hole were a good size."