Treblinka near Warsaw. The extermination camp for Jews. There was a chamber with moving knives, it was in a basement, under a banya. The bodies were cut into pieces and then burned. There were mountains of ashes, twenty to twenty-five metres high. In one place Jews had been chased into a pond full of acid. Their screams were so terrible that local peasants abandoned their homes.

Vasily Grossman (Jewish author) “A Writer At War: Vasily Grossman with the Red Army 1941-1945”, 2005