Heku follows the life of Emily, a rancher from Montana, and Chevalier, a member of the blood-drinking species, the heku. As you delve into the world of the heku, a militaristic society intertwined with that of the humans, you’ll learn a softer side to the harsh Chief Enforcer as he helps Emily come to terms with her startling heritage and begins to find her way in the world of the immortal.