Supernatural Fanfic Pt.2

You've left Sam and Dean to stay with Bobby after what happened between you and Dean, But when an horrible accident lands Sam, John and Dean in the hospital, you and Bobby rush back to their sides. Dean recovers but you get pulled away from his side, minutes before he wakes up. You and Bobby race around, trying to stop a sudden rampage of monsters and demons until Dean frantically calls you saying that Sam has gone missing. You reluctantly agree to help him find Sam and then stick with the boys as they continue hunting. Sam goes missing yet again and this time you throw yourself into finding him. But is it too late?