Braedyn is a normal girl just trying to survive high school with her two devoted friends, Royal and Cassie. Together they're doing a pretty good job of shrugging off the slings and arrows cast their way by the popular crowd when a new boy, Lucas, moves into the house next door. Suddenly Braedyn finds herself falling in love for the first time.

But as her 16th birthday approaches, Braedyn discovers humankind is at war with the Lilitu, an ancient race of enticing demons that prey on human souls. Her father is a member of the Guard fighting against the Lilitu - and so are the new neighbors, including her crush, Lucas.

As her world starts to unravel at the seams, Braedyn learns the right answers aren't always clear or easy. And as for "good" and "evil" - it all depends on how we choose to act.

Inspired by the ancient Mesopotamian myths of Lilith and her offspring, Thrall explores first love, strong friendships, and taking on adult responsibilities against the backdrop of powerful supernatural forces and life-and-death stakes.