When Serayna took the job to clear her family's debt, the instructions were simple. Watch the tower, report disturbances, then return home. But she never expected the tower to watch back. What started as a straightforward task becomes a struggle for survival when she unravels a truth she was never meant to discover. Demons are real, and the one who has marked her won't stop until he's claimed her. The only thing standing between her and an evil force are the letters from a mysterious stranger that break through her silence and form a connection more dangerous than what lurks in the shadows. Armed with only a pet rock and a blunt dagger, she now has to fight to find her place in a world she can no longer trust and is forced to decide how much she is willing to risk-and who she will risk it all for. But no matter which path she chooses, the monsters will always find her. And the tower is still watching.