Aftershock (Sequel to Writing's on the Wall Destiel)

Castiel came back from the dead, a question that Dean doesn't know how to answer. Doubt is arising in his mind about what the future holds for him and Castiel. Lucifer's gone missing, but he may return at any given time. On top of it all, a new enemy is looming in the horizon. Team Free Will knows that the aftershock of the war will come soon- they don't know it's already started.