About the book: year / A terrible deal An impossible choice Kill your only one or lose your own life Kaylin adores her homeland - the Shadowlands, but due to the fact that there is only one yard one of the poorest and weakest fairies in the world, there are few prospects for such a talented fairy like her. Having learned that her parents are planning to marry her to a fairy from another court, she runs away. Her goal is the Cave of Secrets, where you can undergo initiation ahead of time. She will become a full-fledged shadow fairy, despite her parents' decision. But terrible monsters lurk in the deep tunnels. The Night Bringer is waiting for her, and once she falls into his clutches, she must either fulfill her end of the bargain or face eternal slavery. But the deal is not so simple. The Night Bringer dresses her up as a princess and sends her to the ball with the goal of killing the fairy prince. The prince who, by the will of fate, turned out to be her true mate.