“Come in here,” said d’Avrigny, and he took him into the chamber where the sick man lay.

“Is he still in a fit?” said the procureur.

“He is dead.”

Villefort drew back a few steps, and, clasping his hands, exclaimed, with real amazement and sympathy, “Dead?—and so soon too!”

“Yes, it is very soon,” said the doctor, looking at the corpse before him; “but that ought not to astonish you; Monsieur and Madame de Saint-Méran died as soon. People die very suddenly in your house, M. de Villefort.”

“What?” cried the magistrate, with an accent of horror and consternation, “are you still harping on that terrible idea?”

“Still, sir; and I shall always do so,” replied d’Avrigny, “for it has never for one instant ceased to retain possession of my mind; and that you may be quite sure I am not mistaken this time, listen well to what I am going to say, M. de Villefort.”

The magistrate trembled convulsively.

“There is a poison which destroys life almost without leaving any perceptible traces. I know it well; I have studied it in all its forms and in the effects which it produces. I recognized the presence of this poison in the case of poor Barrois as well as in that of Madame de Saint-Méran. There is a way of detecting its presence. It restores the blue color of litmus-paper reddened by an acid, and it turns syrup of violets green. We have no litmus-paper, but, see, here they come with the syrup of violets.”

The doctor was right; steps were heard in the passage. M. d’Avrigny opened the door, and took from the hands of the chambermaid a cup which contained two or three spoonfuls of the syrup, he then carefully closed the door.