“It’s difficult to say. It might be an accident⁠—the fact that someone attempted to poison him the same night might be merely a coincidence.”

“But you don’t think so? You prefer to believe it⁠—murder!”

“Don’t you?”

“ Mon ami , you and I do not reason in the same way. I am not trying to make up my mind between two opposite solutions⁠—murder or accident⁠—that will come when we have solved the other problem⁠—the mystery of the ‘Yellow Jasmine.’ By the way, you have left out something there.”

“You mean the two lines at right angles to each other faintly indicated under the words? I did not think they could be of any possible importance.”