"At any rate, whether by the loss of the vibrations of the red or by the addition of this mysterious force, the light of the moon becomes something entirely different from mere modified sunlight--just as the addition or subtraction of one other chemical in a compound of several makes the product a substance with entirely different energies and potentialities. "Now these rays, Larry, are given perhaps still another mysterious activity by the globes through which Throckmartin said they passed in the Chamber of the Moon Pool. The result is the necessary factor in the formation of the Dweller. There would be nothing scientifically improbable in such a process. Kubalski, the great Russian physicist, produced crystalline forms exhibiting every faculty that we call vital by subjecting certain combinations of chemicals to the action of highly concentrated rays of various colours. Something in light and nothing else produced their pseudo-vitality. We do not begin to know how to harness the potentialities of that magnetic vibration of the ether we call light." "Listen, Doc," said Larry earnestly, "I'll take everything you say about this lost continent, the people who used to live on it, and their caverns, for granted. But by the sword of Brian Boru, you'll never get me to fall for the idea that a bunch of moonshine can handle a big woman such as you say Throckmartin's Thora was, nor a two-fisted man such as you say Throckmartin was, nor Huldricksson's wife--and I'll bet she was one of those strapping big northern women too--you'll never get me to believe that any bunch of concentrated moonshine could handle them and take them waltzing off along a moonbeam back to wherever it goes. No, Doc, not on your life, even Tennessee moonshine couldn't do that--nix!" "All right, O'Keefe," I answered, now very much irritated indeed. "What's your theory?" And I could not resist adding: "Fairies?" "Professor," he grinned, "if that Thing's a fairy it's Irish and when it sees me it'll be so glad there'll be nothing to it. 'I was lost, strayed, or stolen, Larry avick,' it'll say, 'an' I was so homesick for the old sod I was desp'rit,' it'll say, an' 'take me back quick before I do any more har-rm!' it'll tell me--an' that's the truth.