by Alexander Dumas

“ I will go myself and fetch the lemonade." D'Avrigny bounded towards the door, flew down the back staircase, and almost knocked down Madame de Villefort, in his haste, who was herself going down to the kitchen. She cried out, but d'Avrigny paid no attention to her; possessed with but one idea, he cleared the last four steps with a bound, and rushed into the kitchen, where he saw the decanter about three parts empty still standing on the waiter, where it had been left. He darted upon it as an eagle would seize upon its prey. Panting with loss of breath, he returned to the room he had just left. ”

“ 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. "Look," said he to the procureur, whose heart beat so loudly that it might almost be heard, "here is in this cup some syrup of violets, and this decanter contains the remainder of the lemonade of which M. Noirtier and Barrois partook. If the lemonade be pure and inoffensive, the syrup will retain its color; if, on the contrary, the lemonade be drugged with poison, the syrup will become green. Look closely!" ”

“ Morrel looked towards Noirtier for permission to retire. The old man, who had preserved all his usual coolness, made a sign to him to do so. The young man pressed Valentine's hand to his lips, and then left the house by a back staircase. At the same moment that he quitted the room, Villefort and the doctor entered by an opposite door. Barrois was now showing signs of returning consciousness. The crisis seemed past, a low moaning was heard, and he raised himself on one knee. D'Avrigny and Villefort laid him on a couch. "What do you prescribe, doctor?" demanded 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-Meran. 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 ”

“ Valentine cast down her eyes; this was a good omen for Morrel, for he knew that nothing but happiness could have the power of thus overcoming Valentine. "My grandfather intends leaving this house," said she, "and Barrois is looking out suitable apartments for him in another."
"But you, Mademoiselle de Villefort, -- you, who are necessary to M. Noirtier's happiness" --
"I?" interrupted Valentine; "I shall not leave my grandfather, -- that is an understood thing between us. My apartment will be close to his. Now, M. de Villefort must either give his consent to this plan or his refusal ”

“ I am suffering -- I cannot see. A thousand fiery darts are piercing my brain. Ah, don't touch me, pray don't." By this time his haggard eyes had the appearance of being ready to start from their sockets ”