(General, not shipping) The Doctor didn't mean to get involved with the Winchesters. They're into all the wrong things: the killing kind of things. But now he's attached, but that means he's got to deal with the consequences. Because getting involved with the Winchesters means he may lose one of them.

The Triwizard Tournament has come to Hogwarts, champions have been selected but what happens when a fifth name comes out of the Goblet of Fire? A name that will tear down the barriers between the Wizarding World and Sorcerers. Valkyrie Cain. Now Valkyrie must journey to Hogwarts, compete in a life-threatening and she's even allowed to hit anyone. What could go wrong? Spoilers.

Remember when Sam and Dean were driving in the Impala on that deserted highway in that pilot episode? You're probably gonna have to think a little bit to remember. They're driving and they almost hit a mysterious girl dressed all in black, standing in the middle of the road - like she has no idea where she is, 'girl in black' sounds like a beloved book character we all know, right?

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one state into another. And what is grace, if not energy?