Scream for Us (Order of the Unseen #0.5) by Molly Doyle - Used

After wandering into an alluring Halloween party that is said to go down in history, Quinn finds herself captivated by three masked men. As she immerses herself in a night of both pleasure and pain, she finally has the perfect opportunity to bring her darkest fantasies to life.

Or death.

This is a Dark Romance/Suspense, Reverse Harem Novella.