" And once Genghis Khan breached those walls, he did as he had promised. He killed everyone in the city, over a hundred thousand people. But he didn’t stop there. It is said he slaughtered every beast of the field, too. It was those dark acts that earned the city the name it bears today.” The professor shuddered. “Shahr-e-Gholghola. The City of Screams. "

― James Rollins , City of Screams (The Order of the Sanguines, #0.5)