Dark Brethren Series by Tracey O'Hara

The tension between the Aeternus, an ancient vampiric people, and humanity has been mounting for over a century. But when rogue vampires begin to drain humans in order to achieve an illegal blood-high, all bets are off. After the death of her parents, Antoinette Petrescu devoted her life to becoming one of the top Venators, the elite hunters who destroy the rogue Necrodreniacs. Her kill count is legendary and her skills superb. But now the serial killer who killed her parents has returned... moreThe tension between the Aeternus, an ancient vampiric people, and humanity has been mounting for over a century. But when rogue vampires begin to drain humans in order to achieve an illegal blood-high, all bets are off. After the death of her parents, Antoinette Petrescu devoted her life to becoming one of the top Venators, the elite hunters who destroy the rogue Necrodreniacs. Her kill count is legendary and her skills superb. But now the serial killer who killed her parents has returned. And to stop him Antoinette must join forces not only with the Aeternus, but also their most legendary killer. One that is both dangerously attractive, and involved in buried secrets of her past. More dangerous still, a dark attraction grows between them—one that could doom both races. less

After centuries of secret conflict, humans and parahumans have reached an uneasy truce. But unspeakable evil now threatens the tenuous peace. Teenaged shapeshifters are being slaughtered by a sadistic serial killer who rips their still-beating hearts from their paralyzed bodies. A task force forms to halt the madness, including the vampiric Aeternus Antoinette Petrescu, as well as Kitt Jordan and Raven Matokwe, members of enemy Animalian tribes . . . and forbidden lovers... moreAfter centuries of secret conflict, humans and parahumans have reached an uneasy truce. But unspeakable evil now threatens the tenuous peace. Teenaged shapeshifters are being slaughtered by a sadistic serial killer who rips their still-beating hearts from their paralyzed bodies. A task force forms to halt the madness, including the vampiric Aeternus Antoinette Petrescu, as well as Kitt Jordan and Raven Matokwe, members of enemy Animalian tribes . . . and forbidden lovers. A centuries-old blood feud has divided their shapeshifting peoples, and if their passion is discovered it will doom them both. But past hostilities must be put aside, for the killer they seek is but the first sign of the all-consuming nightmare of The Dark Brethren . less

An ancient darkness has risen from the ashes . . . and terror has been loosed upon an unsuspecting world. Forensic witch Bianca Sin has never seen anything like it: homeless teenage girls torn to pieces by dark magic in the cold shadows of the city. More terrifying still is the symbol written in blood on an alley wall—the unmistakable seal of the Dark Brethren... moreAn ancient darkness has risen from the ashes . . . and terror has been loosed upon an unsuspecting world. Forensic witch Bianca Sin has never seen anything like it: homeless teenage girls torn to pieces by dark magic in the cold shadows of the city. More terrifying still is the symbol written in blood on an alley wall—the unmistakable seal of the Dark Brethren. Teaming up with NYPD homicide detective Lancelot McManus and an elite task force headed by the shapeshifter Oberon DuPrie, Bianca knows her worst fears have finally come to pass. A new war of annihilation is looming that will plunge the worlds of vampire, shapeshifter, and human into chaos—and two adversarial tribes locked in uneasy truce will need to take up arms together to save the children. Trust will be essential for Sin and McManus, as the hunt forces them to confront their deepest terrors. For the ultimate evil is no longer approaching. It's here. less