Deepgate Codex, book 1: Scar NightAlan Campbell2007

A vast network of ponderous chains suspends Deepgate over a dark chasm. The church of Ulcis dominates the skyline and the citizens' lives. When a Deepgate denizen dies, the body is cast, with appropriate rites, into the chasm. According to the church, Ulcis lies in the abyss. When he has enough of the sanctified dead to support him, he and they will rise and overthrow Ulcis' mother, Ayen, who bars men from the joys of Paradise. In the meantime, Deepgate battles intermittently with the nomadic heathens of the surrounding deserts, who worship Ayen. Deepgate is home to two angels, the 16-year-old male last descendent of one of Ulcis' companions, and the mad female Carnival, who, once a moon, hunts down and drains someone's blood and soul to remain alive.