Well, I'm not sure what this is.

Disclaimer: I own neither Supernatural, nor The Devil Within, by Digital Daggers.

The quoted lines are from the song listed above.

I will keep quiet, you won't even know I'm here, you won't suspect a thing, you won't see me in the mirror. But I crept into your heart. You can't make me disappear.

Disease. Disease of the broken – crept inside the flesh of the dreamer. Cages hold the free of spirit, the naïve, the creatures unbound.

So, perhaps it was only fitting for everything to lead to this. The path laced with spider webs and fires. For The Cage to trap the independent, the comparative innocence. The bird of the family, unburdened with the horrors of hunting for eternity, with the hope of life.

The free soul, with the hope of love and unabashed to the world. And how was it, that that was the same one that had been marked? The marked child. The poisoned one. The blackened veins pulsing beneath human skin.

The one, who, in the end, became everything he despised. That became the monster he feared – the horror hidden in visions of blood.

I will be here, when you think you're all alone, seeping through the cracks, I'm the poison in your bones, my love is your disease. I won't let it set you free, 'Til i break you.

The life born for the darkness to man created for the snares of evil. He, who gave into the sin. He, who fought through the rivers of crimson. Who lost to the agony and survived. Who fell into pain's arms and made it out atop. Who lived to fail and died to win, and breathed to succeed and succumbed to evil.

You'll never know what hit you. Won't see me closing in, I'm gonna make you suffer - this Hell you put me in. I'm underneath your skin, the Devil within.

A bloodied fighter.

A lost hero.

One half of a painting.

Sam Winchester.

You'll never know what hit you.

Please tell me if you want me to do one of these - whatever it is - for Dean, or, in fact, another character from another TV show, or perhaps movie. Thank you for reading, God bless...!