Title: My Sister The Vampire Twin Spins Author: Sienna Mercia This is a really fun book to read. It is about two twin teenagers but there is only one difference between them,Ivy is a vampire and Olivia is a lover of pink! In this book it is the school disco and Olivia has been chosen to prepare it,but only one thing stands in her way…Two girls from a higher grade than them.Can Olivia and Ivy sort out them in time for the disco? Well, you will have to read the book to find out, won`t you!!!