Warnings: non-graphic torture, show-level violence and swearing
Word Count: 16,676
Summary: After Castiel followed his commander Anael into rebellion, supporting her as second-in-command and standing against both Michael and Lucifer, he never doubted that his choice had been the right one, even if he disliked the term "assassin" that followed him like a shadow. He certainly didn't expected the task to kill the Vessels, the two humans whose death would bring the Apocalypse to a halt once and for all, to affect his loyalties in any way...
Notes: A huge thanks to septembers_coda for the beta! Inspired by this gif set.