Youngblood by Sasha Laurens

Kat Finn and her mother can barely make ends meet living among humans. Like all vampires, they must drink Hema, an expensive synthetic blood substitute, to survive, as nearly all of humanity has been infected by a virus that’s fatal to vampires. Kat isn’t looking forward to an immortal life of barely scraping by, but when she learns she’s been accepted to the Harcote School, a prestigious prep school that’s secretly vampires-only, she knows her fortune is about to change… Read more.