Blue of Blood

Losing himself in his mundane work after the massacre and burning of Hallows, Nate Silver works to find a crimelord notorious for ruthlessness who specializes in human trafficking. Meanwhile, Katina, a potent vampire who recently lost her twin sister, and Azure, a mage with striking blue hair, are calling in a favor Nate owes them. Their plans involve dark magic, but not as dark as the mage working against them.