My Headteacher is a Vampire Rat ! - Grand Format

Izzy and her friends are shocked when they meet their new headteacher. He has black hair, wears a cape and has funny, wormy lips. One time, they even hear him hissing in his office, and sunlight makes him go bright red ! But it's when he bans garlic bread on Italian Day that they know. Their new headteacher is a vampire and his army of vampire rats are going to take over the school ! Eeek !