No Mercy For The Damned
read it on AO3 at https://ift.tt/fo2NpSR by LoNeBird997 To save Dean from the Mark of Cain, Castiel makes a desperate pact with the primordial Empty, trading his angelic grace for a piece of the void. Cured, Dean watches in horror as the dark entity slowly consumes Castiel's emotions, turning the angel into a ruthless, terrifying anti-hero. Driven by cold logic, Castiel abandons the bunker to slaughter any supernatural threats to the Winchesters, forcing Sam and Dean to do the unthinkable: hunt down their best friend before he is completely lost to the darkness. Words: 1873, Chapters: 1/?, Language: English Fandoms: Supernatural (TV 2005) Rating: Mature Warnings: Graphic Depictions Of Violence, Major Character Death Categories: Gen, M/M Characters: Castiel (Supernatural), Dean Winchester, Sam Winchester, Rowena MacLeod, Crowley (Supernatural), The Empty | The Shadow (Supernatural), Jody Mills, Uriel (Supernatural), Minor & Background Characters Relationships: Castiel/Dean Winchester, Castiel & Dean Winchester, Castiel & Dean Winchester & Sam Winchester Additional Tags: The Empty, season 10, Canon-Typical Violence, Alternate Universe - Canon Divergence, Dean Winchester Bears the Mark of Cain, Mark of Cain Fix-It, but at what cost, Descent Into Darkness, Angst, Heavy Angst, Tragedy, Dark Castiel (Supernatural), morally grey castiel, Protective Castiel, Terrifying Castiel, Castiel Loses His Grace, Void Castiel, Badass Castiel, destiel crumbs, Hurt/Comfort, Destiel Subtext, Codependent Winchesters (Supernatural), Hurt Dean Winchester, Guilt, Guilty Dean Winchester, Protective Sam Winchester, Mutual Pining, POV Castiel (Supernatural), Quote: Saving people hunting things (Supernatural), Moral Dilemmas, we die like Castiel, Self-Sacrifice, Slow Burn Castiel/Dean Winchester, Blood & Gore, Alternate Universe - Angels & Demons, Angst with a Bittersweet Ending read it on AO3 at https://ift.tt/fo2NpSR












