'But why do vampire mages?' Hagel pressed. 'Why mix magic with vampirism?' Ava sighed. 'It's a dark partnership. Demons give them twisted magic. Vampires are the perfect hosts, strong enough to handle it, and they get souls. It creates something far worse than either alone.' … The vampire mages keep posing threats to the Contra Sangues, a team dedicated to tracking bloodthirsty enemies in the world of Arleta, having Hagel as their leader. Despite their research, joint strength, and powerful union in getting things done, the vampire mages begin to grow even stronger and scarier, deliberately turning their anger against the werewolves too. Hagel is concerned about the matter, prompted to quick action but afraid to track the vampire mages’ dark cave. So, how will he get hold of those vampire mages? What are they really after—the vampire mages or jewels? Will the name of their team work for their good?