Something Wicked by Mandi Konesni

Vampires, called Hereti, have moved from the shadows to coexist with humankind thanks to the invention of synthetic blood substitutes. While it was an adjustment, for the most part, both species have worked together to find peace. Humankind managed to adapt to the presence of the supernatural as much as could be expected.
Unfortunately, there are always dissidents who threaten the quiet normalcy others have found. Small factions who don’t like any change in the status quo. Fear and greed can be powerful motivators… for the wrong people.

When humans begin turning up dead and evidence leads to the Hereti, Twilight Division partners Jo and Dimitri must work together to figure out what is going on and who is behind it. It’s up to them to protect both of their species from all-out war.
It would be one neither side could truly win.Vampires, called Hereti, have moved from the shadows to coexist with humankind thanks to the invention of synthetic blood substitutes. While it was an adjustment, for the most part, both species have worked together to find peace. Humankind managed to adapt to the presence of the supernatural as much as could be expected.
Unfortunately, there are always dissidents who threaten the quiet normalcy others have found. Small factions who don’t like any change in the status quo. Fear and greed can be powerful motivators… for the wrong people.
When humans begin turning up dead and evidence leads to the Hereti, Twilight Division partners Jo and Dimitri must work together to figure out what is going on and who is behind it. It’s up to them to protect both of their species from all-out war.

It would be one neither side could truly win.