Ruled by Shadows (Light and Darkness) (Volume 1)

She must face her darkest fears to save her world--and he will do anything to protect her.
 
Tired of living a small life, Lilia moves to a bustling port and finds work as a cook. But her neat, ordered world crumbles the day a handsome, enigmatic stranger leaves a charm-stone in her safekeeping. 
 
Ever since Lilia started work at his father's inn, Dain has wanted her--only she doesn't return his interest. But when Lilia's shadow starts acting strangely, and the stranger comes back to retrieve his charm-stone, Dain takes on the role of her protector.
 
What appears to be a humble hag stone--used by folk to ward off evil spirits--is in reality a powerful talisman. One that a secret brotherhood has spent five-hundred years searching for.