Vampire Academy: 1 Vampire Academy by Richelle Mead.
St Vladimir’s Academy isn’t just any boarding school – it’s a hidden place where vampires are educated in the ways of magic and half-human teens train to protect them. Rose Hathaway is a Dhampir, a bodyguard for her best friend Lissa, a Moroi Vampire Princess. They’ve been on the run, but now they’re being dragged back to St Vladimir’s – the very place where they’re most in danger.
Rose and Lissa become enmeshed in forbidden romance, the Academy’s ruthless social scene, and unspeakable night-time rituals. But they must be careful lest the Strigoi – the world’s fiercest and most dangerous vampires – make Lissa one of them forever.