Fear Makes Monsters of Us All

Harry walks to the Forbidden Forest with a newfound sense of self-preservation, a skill he knew once in early childhood but had somehow lost upon arriving in the magical world. But it was back with a vengeance, and Harry would not relinquish it again. He would survive, dammit, if it was the last thing he did. AU from "The Prince's Tale" on. Eventual Harrymort.