Castiel has fallen, and is now entirely human. Dean tries to hide his feelings for his newly-human friend, but, much to his dismay, Human Castiel turns out to be much more perceptive than Angel Castiel. But, unfortunately, not perceptive enough to realize his own feelings, and so the dance continues. And Sam just can't take it anymore. Dean/Castiel

Castiel is now a human and has been thrown out of the bunker by Dean for reasons he can't understand. Unbeknownst to his brother Sam leaves the bunker to find Cas and teach him how to be a human; important lessons such as how to love and when to hate, and how to tie his shoelaces. Sam/Castiel

It's the end of the world, and Dean Winchester has his hands full running the last known camp of Croatoan survivors. Unfortunately that task is made even harder when he realizes he's fallen for his best friend, the now-human angel Castiel. But does Cas feel the same? And what will it mean for them, and the camp, if he does? Dean/Castiel

Castiel has broken the wall between Sam and his memories of the Cage. Instead of saving Sam by taking the hallucinations into himself, Cas works to find another way to save his friend. Sam/Castiel

After the Black Wings castle, The Raven track down another band of the witch hunters. Hirad/Ilkar.