“How do you know?”
“Because I tidied out the wardrobe.”
“That is final. Then someone came into your room and placed the pistol there in order to inculpate you.”
“It must have been so.”
“And when?”
“It could only have been at meal-time, or else at the hours when I would be in the schoolroom with the children.”
“As you were when you got the note?”
“Yes; from that time onwards for the whole morning.”
“Thank you, Miss Dunbar. Is there any other point which could help me in the investigation?”
“I can think of none.”
“There was some sign of violence on the stonework of the bridge—a perfectly fresh chip just opposite the body. Could you suggest any possible explanation of that?”
“Surely it must be a mere coincidence.”
“Curious, Miss Dunbar, very curious. Why should it appear at the very time of the tragedy and why at the very place?”
“But what could have caused it? Only great violence could have such an effect.”
Holmes did not answer. His pale, eager face had suddenly assumed that tense, far-away expression which I had learned to associate with the supreme manifestations of his genius. So evident was the crisis in his mind that none of us dared to speak, and we sat, barrister, prisoner, and myself, watching him in a concentrated and absorbed silence. Suddenly he
