Lucius and I tried to protect you from it all, but it was impossible. What the Dark Lord wanted, he got, and we were helpless, trapped like rats. Your father sank himself into doing the best he could to keep the Dark Lord happy, and protect you and I, Draco, and the strain...it began to warp him. To take its toll upon his psyche; hardening him, furthering the ruthless streak he always possessed. He became a colder, harsher man, much to my sorrow.