Milly is having her new monster friends over for asleepoverthetrouble is, her perfect sister is having her human friends over too, inathirdterrifyingly terrific tale
When Maud's perfect twin sister, Milly plans a sleepover,their motherforces Maud to have her friends over too. What can possibly go wrong? Nothing muchjust that Maud'sfamily might find out about Rotwood High being a school for real monsters! As if that's not enough to worry about, Maud is tricked into looking after Violet, the school hamster, by her arch enemy, Poisonous Penelope. But Violet is no ordinary hamster! She's a pedigree vampster and an expert cage-breaker. With a vampster on the loose, sleep is the very last thing that happens!
