Ramiel. Knights of Order, #11

Ramiel quickly figures out that a catastrophe has struck Earth when he's released from the Void. Sensing someone far in the distance, he mistakenly thinks Amaros is heading in his direction. It's a shock when he runs into some humans who tell him about a man they call the Mad Prophet. According to the oracle, he's supposed to locate and protect a mysterious female. Caterina Blaze is sent on a quest to find her destiny by her great-grandmother who has the ability to see the future.
The cambion is forced to murder someone in her clan and becomes an outcast. Her only choice now is to find the alien Granny Blaze foresaw. When they finally meet, Caterina knows Ramiel is her destiny, but the knight is resisting her. The knight and cambion must work together to locate Ramiel's brothers. She can only hope that she can prove they're meant to be together as they battle humans with black souls during their long journey.