death isn't permanent (not for us)

Remus Lupin is certain he dead. That's just a fact of life. He died, simple. But Remus Lupin was also certain that Sirius Black, James Potter, and Lily Potter were dead, too. Except, they aren't. They're right in front of him, looking like the universe has personally dropped a building on them. Or: Time Travel is simultaneously the best and worst thing ever.