Castiel moved through the forest swiftly. Sam and Dean had been taken captive. His angelic attributes were useless with the current target of the latest hunt countering him with holy fire amongst other things. This was why he was searching for you, a Seelie of the forest, an old acquaintance.

The forest was dark. There wasn't a single sound. It would be eerie if it werent for the fact the silence told Castiel that he was heading in the right direction. His blue eyes sweep the area. He heard it seconds before he moved to the side, narrowly missing being pierced by an arrow.

"Hey! Easy! It's me!"

Castiel called out in his typical deep and gravely voice before he could be shot at again. The angel turned, blue eyes locking on you in the darkness. As an angel, Cas had pretty good night vision in comparison to a human.

"Why are you here?"

Castiel heard your voice ask. He watched you step towards him—bow in hand, another arrow ready to fire. He raised his hands, a gesture of surrender—a gesture that he meant no harm.

"I require your aid. You once said you owed me. This is me cashing in on that favor as the humans say."