"Ah," cried Barbesieur, taking a phial from its shelf, "this is a precious beverage, that lulls one to sleep or to death, as one's friends may prescribe."
"Yes—it is laudanum," replied Strozzi. "A painless dagger, an invisible sword of justice in the hands of the elect. It was the basis of all the wonderful preparations of Katherina de Medicis. There was a woman! Why did I not know her, and learn of her the precious secrets of her laboratorium? From my youth, I have studied chemistry, and I had a beautiful room in Venice, where I used to work with the famous Chiari. But we never discovered Katherina's secret."
"What secret, dear Strozzi?" inquired Barbesieur.
"The secret of killing people by fumes, which left no trace whatever of their action on the body," answered Strozzi, with an awakening gleam of wickedness in his eyes.
"And you believe that there are such delicate, ethereal little ministers of vengeance?"
"Do I believe it?—Why, to their agency Katherina owed her elevation to the throne of France. Nobody knows this better than I, for my ancestor Filippo Strozzi was her friend and relative, and their correspondence now is in the archives of the family, at Venice. I am indebted to the letters of Katherina for much of my knowledge of chemistry."
"And so you found out from her correspondence how she managed to become Queen of France?" asked Barbesieur, anxious to indulge Strozzi's sudden fit of garrulity.
"I did," was his complacent reply, while he nodded his head repeatedly, and stroked his long, white beard. "When Katherina came to France, she came as the bride of the Duke of Orleans, the second son of Francis I. There seemed no chance for HER to be a queen, for the dauphin was a lusty young fellow who was already betrothed to the beautiful Infanta of Spain. But Katherina had no mind to let the infanta reign in France, so she invited the dauphin to her castle of Gien, and took him to her conservatory. There was a beautiful rare flower there, which had a strong perfume. Katherina directed his attention to it, but advised him not to hang over it too long, as it never failed to give HER the headache, if she approached it too closely. The dauphin laughed, and was not to be frightened away from a flower, because of the headache. Moreover, the odor was delightful, and he would not be warned. That day he had a headache; the next, he was pale and feeble, and in less than a week, he died, and nobody the wiser, except Katherina."
"And he died, really from the odor of a flower?"
"Yes. from a flower which Katherina had perfumed for his use, my dear friend. And do you know how she made away with Joanna of Navarre, who had guessed the secret of the dauphin's death, and had already hinted her suspicions to her brother Francis?"