would have interfered with her theory that there was a strange, unseen place on the other side—a place which became, to the child's imagination, according to its different moods, a region of delight or of terror.
It was in the "office" still that Isabel was sitting on that melancholy afternoon of early spring which I have just mentioned. At this time she might have had the whole house to choose from, and the room she had selected was the most joyless chamber it contained. She had never opened the bolted door nor removed the green paper (renewed by other hands) from its side-lights; she had never assured herself that the vulgar street lay beyond it. A crude, cold rain was falling heavily; the spring-time presented itself as a questionable improvement. Isabel, however, gave as little attention as possible to the incongruities of the season; she kept her eyes on her book and tried to fix her mind. It had lately occurred to her that her mind was a good deal of a vagabond, and she had spent much ingenuity in training it to a military step, and teaching it to advance, to halt, to retreat, to perform even more complicated manœuvres, at the word of command. Just now she had given it marching orders, and it had been trudging over the sandy plains of a history of German Thought. Suddenly she became aware of a step very different from her own intellectual pace; she listened a little, and perceived that some one was walking about the library, which communicated with the office. It struck her first as the step of a person from whom she had reason to expect a visit; then almost immediately announced itself as the tread of a woman and a stranger—her possible visitor being neither. It had an inquisitive, experimental quality, which suggested that it would not stop short of the threshold of the office; and, in fact, the doorway of this
