If, therefore, I could hit on some way of screening my mother's castle from them--for a castle I called it from the first moment, though it was to be much more like a cottage--I need fear no observation from other quarters; for the avenue was broad, and on the other side from us there was a range of low, rambling buildings--an engine-house and a long liquor-saloon were two--which had but one story. Most of them had been built, I suppose, only to earn something for the land while it was growing valuable. The church had no windows in the rear, and that protected my castle--which was, indeed, still in the air--from all observation on that side. I told my mother nothing of all this when I went home. But I did tell her that I had some calculations to make for my work, and that was enough. She went on, sweet soul! without speaking a word, with her knitting and her sewing, at her end of the table, only getting up to throw a cloth over her parrot's cage when he was noisy; and I sat at my end of the table, at work over my figures, as silent as if I had been on a desert island. Before bedtime I had quite satisfied myself with the plan of a very pretty little house which would come quite within our space, our means, and our shelter. There was a little passage which ran quite across from east to west. On the church side of this there was my mother's kitchen, which was to be what I fondly marked the "common-room." This was quite long from east to west, and not more than half as long the other way. But on the east side, where I could have no windows, I cut off, on its whole width, a deep closet; and this proved a very fortunate thing afterward, as you shall see. On the west side I made one large square window, and there was, of course, a door into the passage. On the south side of the passage I made three rooms, each narrow and long. The two outside rooms I meant to light from the top. Whether I would put any skylight into the room between them, I was not quite so certain; I did not expect visitors in my new house, so I did not mark it a "guest-room" in the plan. But I thought of it as a storeroom, and as such, indeed, for many years we used it; though at last I found it more convenient to cut a sky-light in the roof there also. But I am getting before my story.