Mrs. Fortress would stand in silence by the bedside. She ruled chiefly by looks. What peculiar duties were attached to her service I know not, but there cannot be a doubt that she performed them faithfully. I neither liked nor disliked her, but she compelled me to respect her. In her outward bearing she was more like a machine than a human being. Sometimes in thinking of her I recalled words which had been applied to me by the man who had accompanied me to purchase the crutch for the lame girl. "There are depths in you, young sir." There must be depths in every human creature--a hidden life pulsing beneath the one revealed to the world. What depths were hidden in Mrs. Fortress's' nature? Had she relatives in some faraway corner, of whom she thought with affection? Had she an ambition, an aspiration? Was she working to some coveted end? Had she an idea which was not bounded by the walls of my mother's sick room? Did she love anything in all the wide world? Did she fear anything? Was she capable of an act of devotion and self-sacrifice? Impossible to discover in one so stolid and impassive. I saw her one day during a great storm standing in the porch of the principal entrance, watching with calm eyes the lightning playing among the trees. She gazed straight and clear before her; there was not a sign of blenching. Loud peals of thunder broke over the district; she made no movement. I could not but admire her, for I myself loved to watch a great storm, and took delight in witnessing a conflict of the elements. "You enjoy it," I said, going to her side. She gazed at me, and did not speak. She was evidently surprised at being addressed on any but a domestic subject. I felt an inward sense of satisfaction, which I did not allow to appear in my face. To have surprised a being so cold and impassive was, in its way, an achievement. "I have heard," I continued, "that most persons are afraid of a storm such as this." "They are cowards," she said. "What is there to be afraid of?" "That is what I think. You must be brave." "Nothing frightens me. There are worse storms." "Oh, yes," I acquiesced. "There was one last year. It struck down hundreds of trees." "I don't mean storms of that kind." I thought a moment. "If not in nature, then," I said, "in human life?" She did not reply; she had already said more than she intended. What came next from me, in the form of a question, was entirely unpremeditated; it escaped from me unaware. "Do you believe in a future world?" "It does not trouble me," she said; and she walked into the house, and cast not a look behind.