"Only magic I know is what hunters typically learn in the course of work," Dean says, letting the hood of the car drop down to close. "Demon summoning, angel summoning, making hex bags, whatever."

He pauses for a moment. "Not too much of that last. Just a defensive one or two to help hide from shit. Learned it from Sam who learned it from a demon who actually seemed to like him. Couldn't trust her any further than we could throw her, but she helped us out a few times."

Right, time to open the car door to slide in behind the wheel to turn it on so he could listen and see if he fixed the problem. After a minute of nothing but the proper purr of the engine, he turns it off and climbs back out. "Problem was something that came loose."