It's Double the Problems: Can Ivy and Olivia Make It Work? This ninth adventure from the popular and funny series is full of drama! Olivia and her vampire twin sister, Ivy, are facing some tough situations. Olivia's in charge of the school dance, but some bullies are trying to take over, and they want to ban Goth girls like Ivy from the dance! Ivy's got problems of her own. Her Transylvanian grandparents want to send her to a special vampire boarding school to learn to control her growing vampire powers, and she's not allowed to tell Olivia about it! Can the sisters find a way to help each other handle it all?