“As a friend, and only as a friend, at this moment. The similarity in the symptoms of tetanus and poisoning by vegetable substances is so great, that were I obliged to affirm by oath what I have now stated, I should hesitate; I therefore repeat to you, I speak not to a magistrate, but to a friend. And to that friend I say, ‘During the three-quarters of an hour that the struggle continued, I watched the convulsions and the death of Madame de Saint-Méran, and am thoroughly convinced that not only did her death proceed from poison, but I could also specify the poison.’ ”

“Can it be possible?”

“The symptoms are marked, do you see?⁠—sleep broken by nervous spasms, excitation of the brain, torpor of the nerve centres. Madame de Saint-Méran succumbed to a powerful dose of brucine or of strychnine, which by some mistake, perhaps, has been given to her.”

Villefort seized the doctor’s hand.