Rojan Dizon, book 1: Fade to black
Francis Knight2013

From the dephts of a valley rises the city of Mahala It's a city built upwards - where streets are built upon streets, buildings upon buildings. A city that the Ministry rules from the sunlit summit, and where the forsaken lurk in the darkness of Under. Rojan Dizon doesn't mind staying in the shadows, because he's got things to hide. Things like being a pain-mage, with the forbidden power to draw magic from pain. But when the fate of Mahala depends on him using his magic, he can't hide for ever.