Oliver Haddo lifted his huge bulk from the low chair in which he had been sitting. He began to walk up and down the studio. It was curious to see this heavy man, whose seriousness was always problematical, caught up by a curious excitement. “You’ve been talking of Paracelsus,” he said. “There is one of his experiments which the doctor has withheld from you. You will find it neither mean nor mercenary, but it is very terrible. I do not know whether the account of it is true, but it would be of extraordinary interest to test it for oneself.” He looked round at the four persons who watched him intently. There was a singular agitation in his manner, as though the thing of which he spoke was very near his heart. “The old alchemists believed in the possibility of spontaneous generation. By the combination of psychical powers and of strange essences, they claim to have created forms in which life became manifest. Of these, the most marvellous were those strange beings, male and female, which were called _homunculi_. The old philosophers doubted the possibility of this operation, but Paracelsus asserts positively that it can be done. I picked up once for a song on a barrow at London Bridge a little book in German. It was dirty and thumbed, many of the pages were torn, and the binding scarcely held the leaves together. It was called _Die Sphinx_ and was edited by a certain Dr Emil Besetzny. It contained the most extraordinary account I have ever read of certain spirits generated by Johann-Ferdinand, Count von Küffstein, in the Tyrol, in 1775. The sources from which this account is taken consist of masonic manuscripts, but more especially of a diary kept by a certain James Kammerer, who acted in the capacity of butler and famulus to the Count. The evidence is ten times stronger than any upon which men believe the articles of their religion. If it related to less wonderful subjects, you would not hesitate to believe implicitly every word you read. There were ten _homunculi_—James Kammerer calls them prophesying spirits—kept in strong bottles, such as are used to preserve fruit, and these were filled with water. They were made in five weeks, by the Count von Küffstein and an Italian mystic and rosicrucian, the Abbé Geloni. The bottles were closed with a magic seal. The spirits were about a span long, and the Count was anxious that they should grow. They were therefore buried under two cartloads of manure, and the pile daily sprinkled with a certain liquor prepared with great trouble by the adepts. The pile after such sprinklings began to ferment and steam, as if heated by a subterranean fire. When the bottles were removed, it was found that the spirits had grown to about a span and a half each; the male _homunculi_ were come into possession of heavy beards, and the nails of the fingers had grown. In two of the bottles there was nothing to be seen save clear water, but when the Abbé knocked thrice at the