The morning light already pricked our jaded eyes when we reached the green door to the park. We had not to use the knocker, as some time ago the porter had given us the keys of his domain. It was agreed that my good tutor, with d’Anquetil, should cautiously advance in the shadow of the lane, and that I should remain behind on the lookout for the faithful Criton, and the kitchen boys who might perhaps see us coming along. This arrangement, which was nothing but reasonable, was to turn out rather badly for me. My two companions had gone up without being discovered, and reached my room, where we had decided to hide M. d’Anquetil until the moment of escape in the post-chaise, but as I was climbing the second flight of steps I met M. d’Asterac, in a red damask gown, carrying a silver candlestick. He put, as he habitually did, his hand on my shoulder. “Hello! my son,” he said, “are you not very happy, having broken off all intercourse with women, and by that escaped all dangers of bad company? With the august maidens of the air you need not be in fear of quarrels, scuffles, injurious and violent rows which usually occur with creatures following a loose life. In your solitude, which delights the fairies, you enjoy a delicious peace.” I thought at first that he mocked me. But I soon found out that nothing was further from his thoughts. “I am pleased to have met you, my son,” he continued, “and will thank you to come with me to my studio for a moment.” I followed him. He unlocked, with a key nearly an ell long, that confounded room where I had seen the glare of infernal fires. When we were inside the laboratory he asked me to kindly make up the smouldering fire. I threw some short logs into the furnace, where I don’t know what was steaming, exhaling a suffocating odour. While he was occupied with his black cookery, cupellating and matrassing, I remained seated on a settle, and, against my will, closed my eyes. He made me reopen them to admire a green earthenware vessel, with a glass top, which he had in his hand. “You ought to know, my son,” he said, “that this subliming pot is called aludel. It contains a liquid to be looked at with the greatest attention, as it is nothing less than the mercury of the philosophers. Do not suppose that it is to keep its present dark colour for ever. Soon it will change to white and in that state will change all metals into silver. Hereafter, by my art and industry, it will turn red, and acquire the virtue of transmuting silver into gold. It certainly would be of advantage to you that, shut in this laboratory, you should not leave it before these sublime operations have fully taken place, a process which cannot require more than two or three months. But as to ask you to do so would perhaps be imposing too hard a restriction on your youth, be satisfied, for this time, to observe the preludes of the work, while putting, if you please, as much wood on the fire as possible.”