His voice was clear and penetrating and full of authority. If I had been Sarah, the quality of that one word, as he uttered it, would have filled me with resentment. A door almost at his elbow opened quickly and a girl appeared. She was well grown and seemed to be about twelve. She was really ten.
"What is it, father?" she asked; I had almost said that she demanded it, but there was no lack of respect in her voice. "Please don't disturb mother. She has a headache. I'm taking care of Charlie. What is it?"
"Oh, Sally," he said. It appeared as if he might even be afraid of her, just a little, with her seriousness and her direct ways and her great eyes that seemed to see right through a man. He gave a little laugh which he intended to be light. It wasn't. "Oh, all right, Sally. You're a very good girl, my dear."
Sally did not smile, but looked at him steadily, waiting for him to say what he had to say.
"Tell your mother, Sally," the professor went on, "that I find I have to go into town to attend to an important matter at the college. I may be late in getting out. In fact, she mustn't be worried if I don't come to-night. It is possible that I may be kept too late for the last train. I am sorry that she has a headache. They seem to be getting more frequent."
Sally bowed her head gravely. "Yes," she said, "they do."
"Well, tell her that I am very sorry. If I could do anything for her, I should, of course, be only too happy. But I can't and there doesn't appear to be any good purpose served by my giving up my trip to town." In this the professor may, conceivably, have been wrong. "Give her my message, my dear, and take good care of Charlie. Good-bye, Sally."
The professor stooped and imprinted a cold kiss upon her forehead. Sally received it impassively without expressing any emotion whatever.
"Good-bye, father," she said. "I will tell mother."
Professor Ladue went out and walked jauntily down the road toward the station. No good purpose will be served, to use his own words, by following him farther at this time. Sally went soberly back to the library, where she had left Charlie; she went very soberly, indeed. No Charlie was to be seen; but, with a skill born of experience, she dived under the sofa and haled him forth, covered with dust and squealing at the top of his lungs.