When best-selling horror author Sam McGarver is invited to spend Halloween night in one of the country's most infamous haunted houses, he reluctantly agrees. At least he won't be alone; joining him are three other masters of the macabre, writers who have helped shape modern horror. But what begins as a simple publicity stunt will become a fight for survival. The entity they have awakened will follow them, torment them, threatening to make them a part of the bloody legacy of Kill Creek.

On a sunny morning in June, Margaret Carpenter wakes up to find a new iPhone on her doorstep. She switches it on to find a text from her best friend, Charity Atwater. The problem is, Charity’s been missing for over a month. Most people in town—even the police—think she’s dead. Margaret and Charity have been lifelong friends. They share everything, know the most intimate details about one another…except for the destructive secret hidden from them both. A secret that will trigger a chain of events ending in tragedy, bloodshed, and death. And now Charity wants Margaret to know her story.

Meet Toadling. On the day of her birth, she was stolen from her family by the fairies, but she grew up safe and loved in the warm waters of faerieland. Once an adult though, the fae ask a favor of Toadling: return to the human world and offer a blessing of protection to a newborn child. Simple, right? If only. Centuries later, a knight approaches a towering wall of brambles, where the thorns are as thick as your arm and as sharp as swords. He's heard there's a curse here that needs breaking, but it's a curse Toadling will do anything to uphold.

Three years later, Stephen is a broken paladin, living only for the chance to be useful before he dies. But all that changes when he encounters a fugitive named Grace in an alley and witnesses an assassination attempt gone wrong. Now the pair must navigate a web of treachery, beset on all sides by spies and poisoners, while a cryptic killer stalks one step behind....

Marra never wanted to be a hero. As the shy, convent-raised, third-born daughter, she escaped the traditional fate of princesses, to be married away for the sake of an uncaring throne. But her sister wasn’t so fortunate—and after years of silence, Marra is done watching her suffer at the hands of a powerful and abusive prince. Seeking help for her rescue mission, Marra is offered the tools she needs, but only if she can complete three seemingly impossible tasks: