Dean leaves the explanation of the sigils to Castiel, mulling over the reapers yet again. "I trust Rukia," he confirms, "And I'll go talk to the other one, Urahara."

Like everything else, the decision chafes at his nerves, and Dean feels his hand being forced yet again, feet dragged from a path he's comfortable with towards one of uncertainty. He's been curious what the mysterious reaper could do for him for some time - he'd like more time to think about what being shinigami means, but it's clear that Dean doesn't have it.

Not if they're already talking about worst case scenarios. "See what he's willing to do for us."