and at the very bottom, a world of caverns whose walls are black with soot, a world of cesspools and sloughs, a world of grubs and beasts, of eyeless beings who drag animal carcasses behind them, of demoniacal monsters with bodies of birds, swine, and fish, of dried-out corpses and yellow-skinned skeletons arrayed in attitudes of the living, of forges manned by dazed Cyclopses in black leather aprons, their single eyes shielded by metal-rimmed blue glass, hammering their brazen masses into dazzling shields.