"There are mighty cities on Yuggoth—great tiers of terraced towers built of black stone like the specimen I tried to send you. That came from Yuggoth. The sun shines there no brighter than a star, but the beings need no light. They have other subtler senses, and put no windows in their great houses and temples. Light even hurts and hampers and confuses them, for it does not exist at all in the black cosmos outside time and space where they came from originally. To visit Yuggoth would drive any weak man mad—yet I am going there. The black rivers of pitch that flow under those mysterious cyclopean bridges—things built by some elder race extinct and forgotten before the beings came to Yuggoth from the ultimate voids—ought to be enough to make any man a Dante or Poe if he can keep sane long enough to tell what he has seen.