"Yes, it was a sad mistake," I answered, "but we must trust that no disaster has occurred. If Mr. Tollemache were quite well, I should not, of course, trouble my head over the matter." "He was far from being that," said a waiter who came up at this moment. "Did you tell the doctor, sir, about the lady who called yesterday?" continued the man, addressing the manager. "No, I had almost forgotten," he replied. "A lady in deep mourning--young, I should say, but she kept her veil down--arrived here last evening about eight o'clock and asked for Mr. Tollemache. I said he was out, and asked if she would wish her name to be left. She seemed to think for a moment and then said 'No,' that it didn't matter. She said she would come again, when she hoped to see him." In his intercourse with me, Tollemache had never spoken of any lady but one, and her photograph he kept in his breast pocket. I wondered if this girl could possibly have been to see him, and, acting on the conjecture that the visitor might be she, I spoke. "If the lady happens to call again," I said, "you may mention to her that I am Mr. Tollemache's medical man, and that I will see her with pleasure if she likes to come to my house in Harley Street." I then further impressed upon the manager the necessity of letting me know the moment any tidings came of Tollemache, and went away. Nothing fresh occurred that evening, but the next morning, just when I had seen the last of my patients, a lady's card was put into my hand. I read the name on it, "Miss Beatrice Sinclair." A kind of premonition told me that Beatrice Sinclair had something to do with Tollemache. I desired my servant to admit her at once. The next moment a tall girl, in very deep mourning, with a crape veil over her face, entered the room. She bowed to me, but did not speak for nearly half a minute. I motioned her to seat herself. She did so, putting up her hand at the same moment to remove her veil. I could not help starting when I saw her face. I bent suddenly forward and said, impulsively:-- "I know what you have come about--you are anxious about Wilfred Tollemache." She looked at me in unfeigned surprise, and a flood of colour rushed to her pale cheeks. She was a handsome girl--her eyes were dark, her mouth tender and beautiful. There was strength about her face--her chin was very firm. Yes, I had seen those features before--or, rather, a faithful representation of them. Beatrice Sinclair had a face not easily forgotten. "If this girl is Tollemache's good angel, there is undoubtedly hope for him," I murmured. [Illustration: "I COULD NOT HELP STARTING WHEN I SAW HER FACE."] Meanwhile, the astonished look on her face gave way to speech. "How can you possibly know me?" she said. "I have never seen you until this moment." "I am Tollemache's doctor, and once he told me about you," I said. "On that occasion, too, he showed me your photograph."