Dragon's Angel (Dragon Wars #7)

Mai Le is called the Angel for a reason. She may be beautiful, but she’s also deadly with a blade. Which is a useful skill in the post-apocalyptic wasteland that is her home. Unfortunately, she has to keep it a secret, or her own brother will slit her throat.
They call him Dragon, but only behind his back. Rumor has it that Takei has killed three dragons single-handed. Quite a feat for a man who isn’t a Dragon Lord. But there are enemies far more dangerous than dragons on the horizon, and the only chance for survival is if the Dragon and the Angel work together.