“I should say,” I returned, “that you had proved what everybody else denies. Even the enemies of that modern Ninon de l’Enclos, who has just passed——”
“With the nurse and the baby?” interpolated the Professor.
“With the nurse and the baby,” said I. “Even her enemies—and they are legion—admit the genuineness of the charms they detest. Mentioning the baby, do you know that for twenty years I have never seen Lady Clanbevan out without a baby? She must have quite a regiment of children—children of all ages, sizes, and sexes.”
“Upon the contrary,” said the Professor, “she has only one!”
“The others have all died young, then?” I asked sympathetically, and was rendered breathless by the rejoinder:
“One never asks questions about the husband of a professional beauty,” I said. “His individuality is merged in hers from the day upon which her latest photograph assumes a marketable value. Are you sure there isn’t a Lord Clanbevan alive somewhere?”
“There is a Lord Clanbevan alive,” said the Professor coldly. “You have just seen him, in his nurse’s arms. He is the only child of his mother, and she has been a widow for nearly twenty years! You do not credit what I assert, my friend?”
“How can I, Professor?” I asked, turning to meet his full face, and noticed that his dark, somewhat opaque brown irises had lights and gleams of carbuncle-crimson in them. “I have had Lady Clanbevan and her progeny under my occasional observation for years. The world grows older, if she doesn’t, and she has invariably a baby—_toujours_ a new baby—to add to the charming illusion of young motherhood which she sustains so well. And now you tell me that she is a twenty-years’ widow with one child, who must be nearly of age—or it isn’t proper. You puzzle me painfully!”
“Would you care,” asked the Professor after a moment’s pause, “to drive back to Harley Street with me? I am, as you know, a vegetarian, so I will not tax your politeness by inviting you to lunch. But I have something in my laboratory I should wish to show you.”
“Of all things, I should like to come,” I said. “How many times haven’t I fished fruitlessly for an invitation to visit the famous laboratory where nearly twenty years ago——”
“I traced,” said the Professor, “the source of phenomena which heralded the evolution of the Röntgen Ray and the ultimate discovery of the radio-active salt they have christened radium. I called it protium twenty years ago, because of its various and protean qualities. Why did I not push on—perfect the discovery and anticipate Sir William C—— and the X——’s? There was a reason. You will understand it before you leave my laboratory.”