The Hematoi descend from the unions of gods and mortals, and the children of two Hematoi--pure-bloods--have godlike powers. Children of Hematoi and mortals--well, not so much. Half-bloods only have two options: become trained Sentinels who hunt and kill daimons or become servants in the homes of the pures. Seventeen-year-old Alexandria would rather risk her life fighting than waste it scrubbing toilets, but she may end up slumming it anyway. There...