“You can imagine, Mr. Holmes, that I was not in a humour to refuse him anything that he might ask. He was my benefactor, and all my desire was to carry out his wishes in every particular. I sent a telegram home, therefore, to say that I had important business on hand, and that it was impossible for me to say how late I might be. Mr. Oldacre had told me that he would like me to have supper with him at nine, as he might not be home before that hour. I had some difficulty in finding his house, however, and it was nearly half-past before I reached it. I found him⁠—”

“One moment!” said Holmes. “Who opened the door?”

“A middle-aged woman, who was, I suppose, his housekeeper.”

“And it was she, I presume, who mentioned your name?”

“Exactly,” said McFarlane.