“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, faraway 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, priso
