thanks again to ladytiferet for the lovely art!
Please read the warnings!
title: Brother's Blood
characters: Sam, Dean, Death, OCs
summary: (season 5 AU) Sam and Dean knew they only had one chance to trap Lucifer and Michael, and they had to make sure the archangels never escaped again. They needed backup from the only beings powerful enough to go toe to toe with Heaven's strongest—the Four Horsemen.