"How are you going to prove your theories?" asked the Banker, in his most irritatingly practical way.
The Chemist picked up the ring and put it on his finger. "Gentlemen," he said. "I have tried to tell you facts, not theories. What I saw through that ultramicroscope was not an unproven theory, but a fact. My theories you have brought out by your questions."
"You are quite right," said the Doctor; "but you did mention yourself that you hoped to provide proof."
The Chemist hesitated a moment, then made his decision. "I will tell you the rest," he said.
"After the destruction of the microscope, I was quite at a loss how to proceed. I thought about the problem for many weeks. Finally I decided to work along another altogether different line--a theory about which I am surprised you have not already questioned me."
"I am hardly ready with proof to-night," he resumed after a moment. "Will you all take dinner with me here at the club one week from to-night?" He read affirmation in the glance of each.
"Good. That's settled," he said, rising. "At seven, then."
"But what was the theory you expected us to question you about?" asked the Very Young Man.
The Chemist leaned on the back of his chair.
"The only solution I could see to the problem," he said slowly, "was to find some way of making myself sufficiently small to be able to enter that other universe. I have found such a way and one week from to-night, gentlemen, with your assistance, I am going to enter the surface of that ring at the point where it is scratched!"
The cigars were lighted and dinner over before the Doctor broached the subject uppermost in the minds of every member of the party.
"A toast, gentlemen," he said, raising his glass. "To the greatest research chemist in the world. May he be successful in his adventure to-night."
"You have not heard me yet," he said smiling.
"But we want to," said the Very Young Man impulsively.
"And you shall." He settled himself more comfortably in his chair. "Gentlemen, I am going to tell you, first, as simply as possible, just what I have done in the past two years. You must draw your own conclusions from the evidence I give you.
"You will remember that I told you last week of my dilemma after the destruction of the microscope. Its loss and the impossibility of replacing it, led me into still bolder plans than merely the visual examination of this minute world. I reasoned, as I have told you, that because of its physical proximity, its similar environment, so to speak, this outer world should be capable of supporting life identical with our own.