He tried to do the right thing, tried to at least make Dean proud of him. But this time? This time it all got away from him, slipping away into revenge and power and Sam really isn't sure how it all happened anymore.

Sobbing, Sam buried his face against his brother's shoulder. He can't be worth it. Sam Winchester, the boy with demon blood, destined to be a monster.

"How do I stop it?" he finally managed. "Dean. I don't know how. How do I stop it?"