“Well, really, I came to seek a theory, not to propound one. I have given you all the facts. Since you ask me, however, I may say that it has occurred to me as possible that the excitement of this affair, the consciousness that she had made so immense a social stride, had the effect of causing some little nervous disturbance in my wife.”

“In short, that she had become suddenly deranged?”

“Well, really, when I consider that she has turned her back⁠—I will not say upon me, but upon so much that many have aspired to without success⁠—I can hardly explain it in any other fashion.”

“Well, certainly that is also a conceivable hypothesis,” said Holmes, smiling. “And now, Lord St. Simon, I think that I have nearly all my data. May I ask whether you were seated at the breakfast-table so that you could see out of the window?”

“We could see the other side of the road and the Park.”