the last covenant

Seven murders. An ancient symbol. A love that has survived death itself. When forensic investigator Ysara Kingswell arrives at the seventh crime scene inside an abandoned cathedral, she discovers a disturbing pattern connecting the victims: identical symbols carved into their bodies, fresh lilies that refuse to wilt, and an impossible circle of ground untouched by rain. But this time, something has changed.
A mysterious letter addressed specifically to Ysara appears at the scene, carrying a chilling message:"I found you again. This time, I refuse to let you die."Soon, Ysara discovers that the murders may be connected to something far older than the city of Blackridge-and perhaps far older than humanity itself. A mysterious man who seems to know her name appears and disappears without a trace, while evidence from the crime scene begins to challenge everything she believes about science and reality.
As the investigation deepens, Ysara is forced to confront a terrifying possibility: the killer may not be hunting random victims. The murders could be part of an ancient covenant, and she may be the final piece of a supernatural story that has been repeating for thousands of years. Because someone has been waiting for Ysara for centuries. And this time, he intends to keep her alive.