Speak No Evil

Dean/Cas highschool AU. Castiel is mute and lives with his abusive uncle, abandoned by his family. Dean and Sam have been adopted by Bobby and Ellen after Dean finally snapped and turned his serial killer father into the police.
In each other, they find happiness.
But darkness never stays away for long.

(dean/cas, sexual themes, child abuse, sexual abuse, rape, mentions and descriptions or murder and mutilation)