Finding the Madman

I smell Destiel...
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Sam and Dean Winchester have decided to lie low for the time being, coming upon an agreement not to be too involved with demons or angels, and just to keep to working simpler jobs, hunting monsters and taking up smaller cases that hopefully won't draw them into any trouble. Unfortunately, they always get dragged back in somehow.

Cas needs help. Heaven is once more falling into a state of unrest. However minor they may seem to those who are unaffected by it, those who are in trouble are the ones Cas cares about and wishes to keep out of harm's way. Esther, an old friend and an angel who Cas regards to be as close as a sister, is one of these. Oblivious to the stirrings in Heaven, she quickly agrees to go to the Bunker. Luckily for Cas, the Winchesters agree to let her stay.

Though that's not all that's been going on.

Hell has also begun to surface, seemingly taking advantage of the distractions in Heaven to further their own cause. The brothers unwillingly get pulled back in after investigating a case that led to their involvement, all thanks to Crowley and another crossroads demon named A.J. All Crowley wishes to do is expand his kingdom, and he's quite happy that fate led the Winchesters right back to him.