Arabella Night is a vampire/fairy and werewolf princess. But she doesn't know yet. Her mom is a vampire/fairy and dad's a werewolf and they are the Queen and King of Domhain, a small country near Ireland. They want to move closer to the palace. Every kid is either more vampire/fairy or werewolf. Arabella is equally both though. She can do anything a werewolf and vampire/fairy can do and is the heir to the crown since she's the first born female child. Which means a lot of people want to kill her and take her throne. And they will do anything to have it.