Dreamblood duology

In the ancient city-state of Gujaareh, peace is the only law. Upon its rooftops and amongst the shadows of its cobbled streets wait the Gatherers -- the keepers of this peace. Priests of the dream-goddess, their duty is to harvest the magic of the sleeping mind and use it to heal, soothe . . . and kill those judged corrupt. But when a conspiracy blooms within Gujaareh's great temple, Ehiru -- the most famous of the city's Gatherers -- must question...