Divinicus Nex

The Divinicus Nex is considered the ultimate weapon for The Mandatum. Every one hundred years, a Divinicus is born, and the current one's been missing for seventeen years now. We learn in Demons at Deadnight that Aurora is the current Divinicus, when the first demon to attack her calls her as such. The Hex Boys only confirm it when they further inform her of the topic.

What we know at the moment is that the Divinicus always has a Bellator, their life partner who locates and protects them. The Divinicus is defenseless, and their ability to locate the demons involves going into their minds and seeing through their eyes, their senses becoming their own, as do their thoughts and wants.

There is a task force dedicated to locating the Divinicus, with generations of the Cacciatori family having helped to find and protect them. Once a Divinicus is found, The Mandatum secure them in their secret facilities so that no demons can harm them.

Right now, there is an enemy seeking to eliminate the Divinicus (Aurora Lahey) because they believe The Mandatum is better off without her. Aurora's guardian, Gloria, has hinted on more than one occasion that there is more to being a Divinicus than merely locating a demon, pointing out things like Aurora 'going through a change' and 'not getting the proper training'.