Dean/Castiel(SPN) - Letter of Goodbye : AU

AU but spoilers for Seasons 4-5 :) NO COPYRIGHT INFRINGMENT IS INTENDED! Long time no upload! And first finished Destiel! Woohoo!! Summary: Dean and Castiel finally get together, and Castiel falls. All is well. But Dean gets some bad news about his heart, and finds out he doesn’t have very long to live. Unable to face Cas, he runs off and leaves a letter, his jacket, Impala and favourite gun to him. Hope you enjoy! Comments are love ♥ Song: Sacrifice Artist: Lisa Gerrar