“I told her that she was only suffering from a very common symptom of nervous disorder, as indeed it was, and promised to send a groom into the village to get a prescription made up for her. And, having made me promise to breathe no word to anyone on the subject, more especially to George, she went away relieved. Nevertheless, I was not quite certain that I had made a correct diagnosis of the case. You see I had been rather upset myself not many hours before. George was longer than I expected at the stable, and I was just going to find him when at the door I met Mrs. Carson.

“‘Can you spare me one moment?’ she said, as I held open the door for her. ‘I wanted to find you alone.’

“‘Certainly, Mrs. Carson, with pleasure; an hour, if you wish,’ I replied.

“‘It is so convenient, you know, to have a doctor in the house,’ she said, with a nervous laugh. ‘Now I want you to prescribe me a sleeping draught. My nerves are rather out of order, and—I don’t sleep as I should.’

“‘Ah,’ I said, ‘do you see faces—and such like things when you wake?’

“‘How do you know?’ she asked quickly.

“‘Oh, I inferred from the other symptoms. We doctors have to observe all kinds of little things.’

“‘Well, of course, I know it is only fancy; but it is just as bad as if it were real. I assure you it is making me quite ill; and I didn’t like to mention it to Mr. Carson or to George. They would think I was losing my head.’

“I gave Mrs. Carson the same prescription as I had written for Miss Stonor, though by that time the conviction had grown upon me that there was something wrong which could not be cured by medicine. However, I decided to say nothing to George about the matter at present. For I could hardly utilize the confidence which had been placed in me by Miss Stonor and Mrs. Carson. And my own experience of the night before would scarcely have appeared convincing to him. But I determined that on the next day—which was Sunday—I would invent an excuse for staying at home from church and make some explorations in the house. There was obviously some mystery at work which wanted clearing up.

“We all sat up rather late that night. There seemed to be a general disinclination to go to bed. We stayed all together in the billiard-room until nearly midnight, and then loitered about in the hall, talking in an aimless sort of fashion. But at last Mrs. Carson said good-night, with a confidential nod to me, and Miss Stonor murmured, ‘So many thanks; I’ve got it,’ and they both went upstairs. George and I parted in the corridor above. Our rooms were opposite each other.