A Hogwarts Murder Mystery (rewrite)

Elizabeth Leoncourt is a sixth year at Hogwarts School of Witchcraft and Wizardy. She's best friends with Al and Rose and they're determined to make this year memorable. But a string of murders has turned this year upside down. Families of known Death Eaters from the wizarding war are being picked off and it seems that not even Harry Potter himself can stop it.