Princeps Venator Series by Niall Teasdale

Michael Williams is no hero, he’s just a cop who works a lot of burglary cases, ended up in the wrong place at the right time, and now he’s known as the man who stopped the Harlem Vampire. Of course, vampires are a myth. Everyone knows that, especially Mike’s rationalist girlfriend, Leanne. Mike stopped a serial killer with a blood fetish. Nothing to look at here, folks. Please move along.And then Mike meets Dione: stunningly attractive, strong, fast, intelligent, and Mike’s new boss... moreMichael Williams is no hero, he’s just a cop who works a lot of burglary cases, ended up in the wrong place at the right time, and now he’s known as the man who stopped the Harlem Vampire. Of course, vampires are a myth. Everyone knows that, especially Mike’s rationalist girlfriend, Leanne. Mike stopped a serial killer with a blood fetish. Nothing to look at here, folks. Please move along.And then Mike meets Dione: stunningly attractive, strong, fast, intelligent, and Mike’s new boss. Together, Mike and Dione have the job of making sure that vampires remain mythical, even the ones walking the streets of New York. less

It’s Valentine’s Day and the people of New York City, alive and undead, are celebrating romantic love and overpriced roses, but for one young woman the evening is to end in death rather than romance. The Valentine Killer made his name in Los Angeles, but now he has come to Dione’s city and she is determined to stop him this time. Dione and Mike must cross the continent in search of information, and soon discover that they are not the only agency searching for the murderer... moreIt’s Valentine’s Day and the people of New York City, alive and undead, are celebrating romantic love and overpriced roses, but for one young woman the evening is to end in death rather than romance. The Valentine Killer made his name in Los Angeles, but now he has come to Dione’s city and she is determined to stop him this time. Dione and Mike must cross the continent in search of information, and soon discover that they are not the only agency searching for the murderer. As the bodies pile up and a trail of destruction going back more than a decade is uncovered, someone seems to be trying very hard to slow the investigation down and unrest among the vampires rises. Amid betrayal from a most unexpected source, Dione and Mike must fight to keep the secret of the existence of vampires, as well as saving a friend and bringing a killer to justice. less

Things seem quiet in New York as the NYPD Specialist Crimes Unit takes on some new staff. The only outstanding case on their books is that of a headless vampire corpse found in the East River. It’s looking like it will be a quiet summer, until the bombs start exploding. Societas Draconistarum, a vampire terrorist organisation, are back and this time their plots could change the future of vampire society forever.