Changeling

Fey go missing in the mortal realm. Everyone knows that.
When Lizzy's mother is the next to vanish she is expected to grieve and move on. Instead Lizzy wants to find out what happened, but the answers she seeks can't be found in the fey realm of Arbaon. With the help of her best friend, Booker Reed, Lizzy is determined to retrace her mother's final steps, straight through an illegal portal and into the mortal realm.
Whatever leads she expected to find, it wasn't an academy of vampires, and a world stalked by their rabid cousins, the kavians. Forced to rely on the vampires for protection, and secluded away behind the high walls of Speculo School, it quickly becomes clear that not everyone is pleased with Lizzy and Booker's investigation.
¿With danger building the further they dig, the two fey need to decide if the answers they seek are worth risking their lives for. The longer they remain with the vampires, the more Lizzy begins to suspect that her answers instead lie amongst the deadly kavians.