This is John from Supernatural, he doesn't belong to me but oh how I wish he did. This is how I think would be a way for John to escape, not fact, just unpaid fiction
ESCAPE FROM HELL
The demon girl slid close to him. He could see her eyes and for a few moments thought he was losing his mind. He thought he saw compassion and another emotion in her eyes. He felt the pain ease and his bonds seemed to slip away. Could this be real or was it some kind of new torture? He wondered to himself.
"Soon John, you will be free of this torture. I will take you to a place you will be safe, at least until I can come up with a more …permanent… plan."
He sat up with her help but getting to his feet in infinitely more difficult. She helped him out of the prison cell and to a small alcove. She muttered a few words and they were in a dark alley. He could see it was a rank ill-gotten type place. He looked at his rescuer and to his surprise in her place was a small red haired girl with emerald eyes.
"You don't think I'd keep my natural form in the mortal world do you? She smiled up at him. Her eyes were shining and if he hadn't known she was a demon he'd have sworn there was love in her eyes.
"Why have you helped me?" he ask.
"Because John, we are not all evil as you think. For all that you know, there is a lot more that you don't know. For instance, there are many factions in "Hell". My father rules over all, but only so long as he keeps them from banding together to over throw him. As strong as he is enough others band together and it could be disastrous. That 's why I couldn't just demand your release. It's why I had to help you escape. I know that you hate me for what I am but you don't even know me. I can't let you hunt my kind either and I have to hide you from those who will hunt for you on both sides. I will take your memories of being a hunter and a father. No one will be able to trace you and you will be safe for the time being." With that she blew a fine sparkling powder in his face. He slowly crumpled leaving the red haired girl to hold his head in her lap, to stroke his hair as he slowly began to come to. Again.