Circle of Trust by Aimee Nicole Walker (ePUB, PDF, Downloads)‎

Lorcán Kennedy is a take-no-prisoner vampire whose grit is tested when slain vampires start showing up in his sector. His investigation reveals a blessed weapon was used in the slayings, which leads him to a rogue hunter with a grudge against vampires.
Christian Wolfe is a no-nonsense hunter who believes the only good vampire is a dead one, but his code of honor keeps his hatred in check. When his integrity is questioned, he will do anything to defend it, including work with his enemy.

Vampire and hunter unite to solve the case, although for very different reasons. Lorcán wants to prove he is worthy of his Regent title once and for all. Christian wants to uncover who is framing him for the vampire deaths. It sounds easy enough, but neither are prepared for the desire that arcs between them when their eyes meet for the first time. When longing glances give way to passionate kisses and scorching touches, these powerful beings will learn that their bond goes beyond mere attraction. It is fate.