The Slytherin Princess (Rewritten)

Voldemort has a daughter. Her name is Melody Prince, formally Melody Riddle, and she's nothing like Voldemort. She's kind, good, and hates to see anyone dying or injured; however, craziness apparently runs in the family, with Melody's hallucinations and whatnot. What happens when Melody goes to Hogwarts for the first time? What will her reaction be when she meets the Slytherin prince?

"Three blind mice, three blind mice. I told them I wasn't like him, I told them!"
"What the bloody hell is she going on about?"