As we had expected, the telegram was soon followed by its sender, and the card of Mr. Cyril Overton, Trinity College, Cambridge, announced the arrival of an enormous young man, sixteen stone of solid bone and muscle, who spanned the doorway with his broad shoulders, and looked from one of us to the other with a comely face which was haggard with anxiety.

“ Mr. Sherlock Holmes?”

My companion bowed.

“I’ve been down to Scotland Yard, Mr. Holmes. I saw Inspector Stanley Hopkins. He advised me to come to you. He said the case, so far as he could see, was more in your line than in that of the regular police.”

“Pray sit down and tell me what is the matter.”