Vampire Series by Linda Howard, Linda Jones, Vanessa Hart, Linda Winstead Jones

When the human and the vampire worlds collide, there will be hell to pay. Luca Ambrus is a rare breed: vampire from birth, begotten by vampire parents, blood born. He is also an agent of the Council—the centuries-old cabal that governs vampirekind, preserving their secrecy and destroying those who betray them.When a cryptic summons leads him to the scene of the brutal killing of a powerful Council member, Luca begins the hunt for an assassin among his own people... moreWhen the human and the vampire worlds collide, there will be hell to pay. Luca Ambrus is a rare breed: vampire from birth, begotten by vampire parents, blood born. He is also an agent of the Council—the centuries-old cabal that governs vampirekind, preserving their secrecy and destroying those who betray them.When a cryptic summons leads him to the scene of the brutal killing of a powerful Council member, Luca begins the hunt for an assassin among his own people. But instead of a lone killer he discovers a sinister conspiracy of rogue vampires bent on subjugating the mortal world.All that stands in their way are the conduits, humans able to channel spirit warriors into the physical world to protect mankind. Chloe Fallon is a conduit—and a target of the vampire assassin who’s killing them. When Luca saves her life, an irresistible bond of trust—along with more passionate feelings—is forged between them. As more victims fall, Chloe and Luca have only each other to depend on to save the world from the reign of monsters—and salvage their own future together.From the Paperback edition. less

The first blood has spilled….   For centuries, humans had no idea of the world beyond their mortal knowledge. A world of vampires, witches, Immortal Warriors, and more. And now a vampire has plotted to become queen and put all humans under her dominion.   Sorin has been at the queen-to-be’s right hand for decades. He’s killed, plotted, and planned for his own rise to power... moreThe first blood has spilled….   For centuries, humans had no idea of the world beyond their mortal knowledge. A world of vampires, witches, Immortal Warriors, and more. And now a vampire has plotted to become queen and put all humans under her dominion.   Sorin has been at the queen-to-be’s right hand for decades. He’s killed, plotted, and planned for his own rise to power. But when he’s ordered to kill a child, suddenly all of his humanity comes rushing back and he pledges allegiance to the rebel forces.   There an Immortal Warrior named Indikaiya watches him with distrust. She is drawn to this man with a dark soul and such a slight glimmer of honor that it’s nearly extinguished. She sees the strength of his will as he goes up against his former allies, the intensity he brings to each fight, and the passion he offers to her.   As the humans, vampires, and warriors brace for the final battle, it seems clear that not all may survive. And all will be changed. By blood… and by death…. less