Sitting in the Light Creates a Shadow of Darkness

Harry Potter has had enough. When he got his letter at the beginning of the school year, he knew that he had found his out from the Dursleys. However, his sister, Dot, had not gotten a letter. He couldn't leave her behind with the very people who had scared his sister. He had no choice. He spent the whole year wondering if his sister was okay, and asking if he could visit her. Every time he was denied. On the last day of the semester, he was heading up to Professor Dumbledore's office to see if him and his sister could stay at Hogwarts over the summer. However, he heard a conversation between what he thought to be his best friends and the Headmaster. A conversation that made him rethink his stance with the light side. They wanted to get rid of him, and his sister, in order to get to the Potter fortune (which he knew nothing about), and they wanted to keep him away from the snakes. He couldn't go dark, it would ruin their plans, they needed him to go dark after Voldemort was back and killed so that they could claim he was the next Dark Lord and kill him. If he was to be the next Dark Lord, he had a letter to write. This is where the story begins. Harry has a sister to protect.