Eric J. Gates [The Cull 01-04]

Disgraced, ex-FBI Agent Amy Bree is partnered with ex-NSA super-spy, Katie Lindon, to track down and eliminate the bloody serial killer known as the Blood Sucker. They quickly find they are part of a much larger conspiracy originating in the Vatican. As they near their prey, the body count rises and the hunters become the hunted!
That's how this adrenaline-fueled tale starts. It will take the protagonists on a fast-paced race through three continents as they seek to unravel the mystery behind an ancient conspiracy. The journey will change both of them forever!