"Then again, the rate of this present deterioration of stone and steel has furnished another index. And last night I had a little peek at the pole-star, through my telescope, while you were asleep.
"The good old star has certainly shifted out of place a bit. Furthermore, I've been observing certain evolutionary changes in the animals and plants about us. Those have helped, too."
"And--and what have you found out?" asked she with tremulous interest.
"Well, I think I've got the answer, more or less correctly. Of course it's only an approximate result, as we say in engineering. But the different items check up with some degree of consistency.
"And I'm safe in believing I'm within at least a hundred years of the date one way or the other. Not a bad factor of safety, that, with my limited means of working."
The girl's eyes widened. From her hand fell the empty gold cup; it rolled away across the clean-swept floor.
"What?" cried she. "You've got it, within a hundred years! Why, then--you mean it's more than a hundred?"
Indulgently the engineer smiled.
"Come, now," he coaxed. "Just guess, for instance, how old you really are--and growing younger every day?"
"Two hundred maybe? Oh surely not as old as that! It's horrible to think of!"
"Listen," bade he. "If I count your twenty-four years, when you went to sleep, you're now--"
"What?"
"You're now at the very minimum calculation, just about one thousand and twenty-four! Some age, that, eh?"
Then, as she stared at him wide-eyed he added with a smile.
"No disputing that fact, no dodging it. The thing's as certain as that you're now the most beautiful woman in the whole wide world!"