A Father's Instinct

Alternate version of Kevin's death, where he sells his soul to Crowley at a young age in order to gain intelligence. Hint of Destiel, because why not. Quite a dark ending, lots of violence. Note: Crowley's Hell is more like Lucifer's Hell in this, I thought it would work better with the story. (Disclaimer: I do not own Supernatural, or any of the characters.)