" Moroi wields one of the four elements? Well, it turns out Lissa wields one no one even knew existed until recently: spirit. For years, we thought she just wasn’t going to develop her magical abilities. Then strange things started happening around her. For example, all vampires have an ability called compulsion that lets them force their will on others. Strigoi have it really strongly. "

― Richelle Mead , Frostbite (Vampire Academy, #2)