“Women of the De Merville type do not act like that. She would love him the more as a disfigured martyr. No, no. It is his moral side, not his physical, which we have to destroy. That book will bring her back to earth - and I know nothing else that could. It is in his own writing. She cannot get past it.”

Sir James carried away both it and the precious saucer. As I was myself overdue, I went down with him into the street. A brougham was waiting for him. He sprang in, gave a hurried order to the cockaded coachman, and drove swiftly away. He flung his overcoat half out of the window to cover the armorial bearings upon the panel, but I had seen them in the glare of our fanlight none the less. I gasped with surprise. Then I turned back and ascended the stair to Holmes’s room.

“I have found out who our client is,” I cried, bursting with my great news. “Why, Holmes, it is- -”

“It is a loyal friend and a chivalrous gentleman,” said Holmes, holding up a restraining hand. “Let that now and forever be enough for us.”

I do not know how the incriminating book was used. Sir James may have managed it. Or it is more probable that so delicate a task was entrusted to the young lady’s father. The effect, at any rate, was all that could be desired. Three days later appeared a paragraph in the Morning Post to say that the marriage between Baron Adelbert Gruner and Miss Violet de Merville would not take place. The same paper had the first police-court hearing of the proceedings against Miss Kitty Winter on the grave charge of vitriol-throwing. Such extenuating circumstances came out in the trial that the sentence, as will be remembered, was the lowest that was possible for such an offence. Sherlock Holmes was threatened with a prosecution for burglary, but when an object is good and a client is sufficiently illustrious, even the rigid British law becomes human and elastic. My friend has not yet stood in the dock.