Moppet's chamber was a small one, and occupied the center of the house, Miss Euphemia's being upon one side, and the north chamber (as one of the great rooms was called) upon the other. The great chimney of the mansion ran up between the large and small room, and what Moppet called her "doll's dungeon" was a hollow place, just high enough for the child to reach, in the back of the chimney. For some purpose of ventilation there was an opening from this aperture into the north chamber. It was covered with a piece of movable iron; and in summer, when no fire was used in that part of the house, Moppet took great delight in consigning her contumacious doll (a rag baby of large size and much plainness of feature) to what she was pleased to call her "dungeon." To-night Betty's quick wit had divined what an important factor the aperture might prove to her, and directly she had secured the door, she walked softly toward the chimney, and felt in the darkness for the movable bit of iron which filled the back. When Geoffrey Yorke had finished the ample and delicious supper with which Miss Euphemia's hospitable and pitying soul had furnished him, he lighted his candle and made thorough search of his temporary prison to ascertain whether he could escape therefrom. Betty's gesture of disapproval when he was about to give his parole had seemed to promise him assistance; could it be possible that the lovely little rebel's heart was so moved with pity?" "Sweet Betty," thought Geoffrey, "was ever maid so grateful for a small service! I wish with all my soul I might have chance and opportunity to do her a great one, for never have I seen so bewitching and dainty a creature," and Geoffrey's heart gave a mad leap as he remembered the tearful, beseeching glance which Betty had bestowed upon him as Oliver had conducted him from her presence.