"Listen, Harry, you ... talk to Sniv... Severus. He once believed in Tom Riddle. He only became a spy, because Voldemort targeted us. Lily was always the only person he was truly loyal to." He smiled, "Well, Lily and now you. From what we gathered, your "Dark Lord" was all about protecting the wizarding world, at least at the beginning. That's not a bad thing. We know that muggles are dangerous, at least those of us who look. World War II. Hiroshima. We have no choice but to hide. If we are discovered, they will eradicate us with but a push of a button. But when Tom Riddle split his soul, he started to hurt; he became hard and bitter. He lost sight of the bigger picture, turned into Lord Voldemort, and became content with harming people. Without him being whole, he will destroy our world. But you ... you can make a difference. He can't kill you, so he might listen to you."