Centuries have passed since the sealing of the Grigori, and the children of the Nephilim walk the earth. Sam and Dean stumble across the Circle of Enoch, finding themselves in the midst of a prophecy that Sam is destined to fulfill.

After what seems like a chance encounter with a succubus in a college bar, Dean and Sam learn about the Circle of Enoch — and the Enochian Prophecy that the Circle has sworn to fulfill; a prophecy where Sam is "the Destroyer" and his Ascension is the precursor to Armageddon. There's no way in hell the Winchesters are going to let that happen. But how do you stop Armageddon with nothing but a book bag full of notes and a glowing sword?

A Season Two AU.

It’s time to sleep and Papa smiles, fear clamping his insides. Afraid of where she goes, of never being able to follow where she dances – her screams when the dark clouds are filling the sky and the voices are filling her head with the buzzing. Searching and searching and searching to find the one who will rebuild earth that is into hell that was.

This is a Season Three AU crossover with Firefly.
 

Twenty-two years ago, Mary Winchester — the beloved Wife of John Winchester and adored Mother of Samuel and Deane Winchester — was cruelly lost within a fire that claimed the Winchester family's home. Since that day, a bereaved John Winchester has traveled throughout Europe, tracking the foul creature that perpetrated such a cruel trick upon his family; raising his sons to follow in his footsteps. Armed with Samuel's inventions and Deane's uncanny ability to bring down any prey, the brothers Winchester travel through Great Britain and Europe, following clues they receive in the form of mysterious letters — and Samuel's disturbing visions.

A Victorian era AU, complete with Gadgets and Gallantry.