It appeared to us to come from a corridor on the third floor where we had never been. In that direction we fumbled our way, and seeing through the slits of a door the red brightness, we knocked with all our might on the panel. It opened at once.

M. d’Asterac, who opened the door, stood quietly before us. His long black figure seemed to be enveloped in flaming air. He asked quietly on what pressing business we were looking for him at so late an hour. There was no conflagration but a terrible fire, burning in a big furnace with reflectors, which as I have since learned are called athanors. The whole of the rather large room was full of glass bottles with long necks twined round glass tubes of a duck-beak shape, retorts, resembling chubby cheeks out of which came noses like trumpets, crucibles, cupels, matrasses, cucurbits and vases of all forms.

My dear old tutor wiping his face shining like live coals said:

“Oh, sir, we were afraid that the castle was alight like straw. Thank God, the library is not burning. But are you practising the spagyric art, sir?”

“I do not want to conceal from you,” said M. d’Asterac, “that I have made great progress in it, but withal I have not found the theorem capable of rendering my work perfect. At the moment you knocked at the door I was picking up the Spirit of the World, and the Flower of Heaven, which are the veritable Fountains of Youth. Have you some understanding of alchemy, Monsieur Coignard?”

The abbé replied that he had got some notions of it from certain books, but that he considered the practice of it to be pernicious and contrary to religion. M. d’Asterac smiled and said:

“You are too knowing a man, M. Coignard, not to be acquainted with the Flying Eagle, the Bird of Hermes, the Fowl of Hermogenes, the Head of a Raven, the Green Lion and the Phoenix.”

“I have been told,” said my good master, “that by these names are distinguished the philosopher’s stone in its different states. But I have doubts about the possibility of a transmutation of metals.”

With the greatest confidence M. d’Asterac replied:

“Nothing is easier, my dear sir, than to bring your uncertainty to an end.”