Redefine Monster
read it on the AO3 at http://ift.tt/1GEuXj1
by idioticintentions
Castiel and his partner, Gabriel, have been on the Winchester case for years. The trail has grown cold until the murder of a woman outside of Omaha. They meet the Winchesters, who plead they aren't really serial killers. They hunt the supernatural. And they need the federal agents' help.
Words: 6744, Chapters: 2/3, Language: English
Fandoms: Supernatural
Rating: Mature
Warnings: Creator Chose Not To Use Archive Warnings, Graphic Depictions Of Violence
Categories: M/M
Characters: Castiel, Dean Winchester, Sam Winchester, Gabriel (Supernatural), Victor Henriksen
Relationships: Castiel/Dean Winchester, Dean Winchester & Sam Winchester, Castiel & Gabriel
Additional Tags: serial killer au, or is it?!, Castiel and Gabe are Federal Agents, Alternate Universe, not canon compliant because I am lazy
read it on the AO3 at http://ift.tt/1GEuXj1