It was the end, for whatever remains to me of life on the surface of this earth, of every vestige of mental peace and confidence in the integrity of nature and of the human mind. Nothing that I could have imagined—nothing, even, that I could have gathered had I credited old Zadok's crazy tale in the most literal way—would be in any way comparable to the demoniac, blasphemous reality that I saw—or believe I saw. I have tried to hint what it was in order to postpone the horror of writing it down baldly. Can it be possible that this planet has actually spawned such things; that human eyes have truly seen, as objective flesh, what man has hitherto known only in febrile phantasy and tenuous legend?