Gaby Winters' life used to be pretty normal. She lived with her best friend. She worked in a library. She was slowly getting over the death of her twin brother, Jude. And then Rafa came looking for her.     With him, her blood-soaked nightmares stopped. But now they are reality. She is one of the Rephaim - a wingless half angel, descended from the Fallen. Demons exist and they are hunting her.     She knows she's alive when she's meant to be dead. And that means maybe Jude is