The Blood of Monsters

Every decade, twelve young women from my island are gifted to the monsters.
This year, I'm in the line-up. But unlike the others, I want to be taken. Correction, I need to be taken-for my sister's sake. It's my fault she was chosen during the last offering, and I have to find out if she's alive.
I thought I was ready, but nothing could have prepared me for the four monsters who claim me. A vampire, wolf shifter, demon, and siren. They're terrifying, powerful, and infuriatingly arrogant...and now these alphas are fixated on me.
Turns out, finding my sister won't be as easy as I'd hoped. Now that I'm in their world, the monsters think I'll become one of them. I'm in their monster trials, and they're going to play with me until I turn.
These monsters think it'll be easy to break me, but they picked the wrong girl. Because I'm already a monster. They just don't know it yet.
This is a fun reverse harem fantasy novel. Contains mature content.