The slaves rose. Their saw-edged crescents cut down the men of Dagon like sheep, and against that unearthly knife the magic of Khosatral was impotent. While carnage and slaughter bellowed through the red smoke that choked the streets, the grimmest act of that grim drama was played in the cryptic dome behind the great diased chamber with its copper throne and its walls mottled like the skin of serpents.