The Mutt (SPN fanfiction)

The mutt of the supernatural. That's what they call me, well the only person alive that knows I exist. The other one, my creator, died. I killed him. I'm a weapon, that's what I do. I'm a hybrid of every powerful supernatural creature he could get his hands on. The most powerful ones of each kind. Not any angel, an Archangel, not any demon, a knight of hell. Not any werewolf, an Alpha. Every single kind of monster, my creator could get his hands on, he got their DNA, mixed it all together, and I was born. My brother kept me hidden from the world. Until they came into my life. The Winchesters. I'm Avery Rive, and this is how, the Winchesters spared the life of the mutt.