Be Free (слэш)

AU from end of Southern Comfort. Sam takes Dean's words to heart, his mind throwing in its own two cents. Believing it is what will make Dean happy, Sam runs and becomes untraceable until it is almost too late. Dean calls in any help he can to find his brother, including angelic assistance. But finding someone with the knowledge Sam has, and who doesn't want to be found, the remaining members of Team Free Will better pull out all the stops, and fast. Sastiel. TRIGGER WARNING: self-harm, cutting, suicide. warnings in each chapter