Luminescence cover

This is the cover for Luminescence by Riley Grisham. 

STORY:

Silver Corrinth is an orphan, living with two people who claim to be her parents, and had ever since she was four and her real parents were murdered. She has no idea how they managed to pull this off without someone figuring it out. Wouldn't you notice when a child switches parents? Her fake parents, Cecile and Samuel, look like her, walk like her, even talk like her. But when others look away, they taunt her like children, calling her a freak and alien. It doesn't help that when she cries her tears glow, and when she dances the stars in the sky shine brighter. When a falling star is found only miles from her house, her life is thrown into termoil. Whispers of 'another one' fill the house, and one night, men dressed in government suits come and try to take her. Escaping and saving the life of Coin, a boy she finds wandering and lost like she is, she finds herself remembering things that make no sense. How does floating in the sky, looking down on the earth with great sadness, have anything to do with her?