"Dean, it's been two days and no sightings of the magic box."
"Don't call it a magic box, Sammy. Sounds unprofessional."
"You two can be very unprofessional," said Castiel, appearing in the back seat.
"Cas, don't do that! "
"My apologies, Dean. Either way, it's being controlled by someone."
"What is?"
"The box. I've seen him. A man in a suit. A dark blue suit. Except he was wearing red shoes, tennis shoes... Converse, maybe. He also had on a trenchcoat. Like mine, but longer."
"So we're after a well-dressed man who does a lot of running?"
"I would assume so. But not a man, exactly. A male... something. He is not of this world."
"What makes you think that?"
"He has two hearts."
"Dean, how would Castiel know that?"
"I've learned not to ask, Sammy. Either way, I guess it's him we're after, not the box."
"Actually, it's both. The box.. entity, rather... is sentient."