Castiel blinks in surprise. Though not necessarily at the offer.

"Of course I would trust you."

This is Michael.

"If you are willing, it would ease my mind," he admits.

"At least until he has regained some of his footing."

What Castiel will do with himself in the meantime, he is not sure. He certainly can't leave Milliways -- not without taking with him the man he was charged with bringing back.

But he is sure there will be something. And at least at first it will involve not straying far from Dean's room.