Ash and Bones (City of Sacrifice #2) by Michael R. Fletcher 30, Jul

With double the dose of narcotic-fueled madness, Ash and Bones is a fantastic sequel and solid entry in the City of Sacrifice series. 

Mother Death has returned to Bastion after her millennia-long exile beyond its walls in the endless Bloody Desert. Her coming heralds the end of days as the soul-thirsting pantheon of gods that rule over humanity's last city now fight for sole control of its inhabitants. With violent riots led by Mother Death's worshipers, the Loa, engulfing the outer ring, Nuru, the instrument of her return, flees inwards, hunted by the vengeful and fanatical sorcerer, Akachi, who will do anything to save Bastion, no matter the cost.