“Among the secrets which your knowledge places at the command of your art, what would you give for one which would enable you to defy and to deride a rival where you place your affections, which could lock to yourself, and imperiously control, the will of the being whom you desire to fascinate, by an influence paramount, transcendent?”

“Love has that secret,” said I,—“and love alone.”

“A power stronger than love can suspend, can change love itself. But if love be the object or dream of your life, love is the rosy associate of youth and beauty. Beauty soon fades, youth soon departs. What if in nature there were means by which beauty and youth can be fixed into blooming duration,—means that could arrest the course, nay, repair the effects, of time on the elements that make up the human frame?”

“Silly boy! Have the Rosicrucians bequeathed to you a prescription for the elixir of life?”

“If I had the prescription I should not ask your aid to discover its ingredients.”

“And is it in the hope of that notable discovery you have studied chemistry, electricity, and magnetism? Again I say, Silly boy!”

Margrave did not heed my reply. His face was overcast, gloomy, troubled.

“That the vital principle is a gas,” said he, abruptly, “I am fully convinced. Can that gas be the one which combines caloric with oxygen?”

“Phosoxygen? Sir Humphrey Davy demonstrates that gas not to be, as Lavoisier supposed, caloric, but light, combined with oxygen; and he suggests, not indeed that it is the vital principle itself, but the pabulum of life to organic beings.” (1)

“Does he?” said Margrave, his, face clearing up. “Possibly, possibly, then, here we approach the great secret of secrets. Look you, Allen Fenwick: I promise to secure to you unfailing security from all the jealous fears that now torture your heart; if you care for that fame which to me is not worth the scent of a flower, the balm of a breeze, I will impart to you a knowledge which, in the hands of ambition, would dwarf into commonplace the boasted wonders of recognized science. I will do all this, if, in return, but for one month you will give yourself up to my guidance in whatever experiments I ask, no matter how wild they may seem to you.”