The Witch With Water Powers

Her mother didn't want her because she was different. She was a demigod and a witch, causing her to be more powerful and dangerous then others. Her father, Poseidon, took her to Camp Half Blood after her mother abandoned her. At age 11, she gets her Hogwarts letter. Although she was sad that she couldn't spend much time with Luke, she was still happy. In 4th year her life takes a major turn, when someone finds out about her power. Who? How? When? Well. The Marauders. She made a small water diamond in her hand, in the common room, when she thought she was alone. And they found out in 4th year. But what happens is the real question.