The Vampire Hunter / The Sounds of Sirens

A) There's a new girl at Mona's school, she is a vampire hunter and befriends Angela. Angela tells her that Mona is an evil vampire and she decides to hunt her and make her loose her powers. B) Charley falls in love with a Lucy Lanning. Lily and Mona suspect that she's a siren and that Charley is under her spell.