Title: Into The Fire Author: NorthernSparrow URL:archiveofourown.org/works/4080676 Characters: Castiel, Dean Winchester, Sam Winchester, Crowley, Hannah Relationships: Castiel/Dean Winchester Rating: Mature Tags: Angst, Hurt Castiel, Emotional Hurt, Grief/Mourning, Guilty Dean, Supportive Sam, Sadness, Castiel Whump, Depressed Dean, Torture, Aftermath of Torture, Emotionally Repressed Dean, Repressed Destiel, Regret, Possibly Unrequited Love, Canon Divergence, Mental Instability, Mental Anguish, Self-Harm, Darkness, Plotty, Plot Twists, Post-Mark of Cain, Pagan Gods, Heaven & Hell, Suicidal Thoughts, Suicidal Dean, Action/Adventure, Epic, Alternate Season 11, Angel Headcanon, Road Trips, Epic Battlers, Epic Journeys, No Smut, Emotions, Friendship, Love Summary:Dean accidentally kills Castiel, and is tormented by grief and guilt afterwards. Dean becomes convinced Cas still exists somehow, and that he will be resurrected; Sam's not so sure, but is determined to help his grief-stricken brother recover. Meanwhile the Darkness is eating away at Creation, and soon both brothers realize they may have to embark on their longest and strangest journey yet. This time they might not come back. Will they have to fight their last battle without Castiel?