Harper Blaine was an average PI until she died. Her rebirth turned her into a Greywalker; someone who can see the living world and the dead world at the same time. Harper can not only see the world of the dead, she can enter their time and talk with them, if they allow her to.

All over the city, homeless people are dying. As she and her friend, Quinton, track the people who died, she learns more about the underground of Seattle and was can live down there. There is a creature of legend who is taking the bodies of the homeless and creating zombies.

At first, the belief is that the vampires are taking the homeless. The leader of the vampires disavows all knowledge of the deaths and promises Harper that none of his people will impede her investigation. With the help of a Native American morgue worker, Harper is able to track down the identity of the monster. They will learn that the creature has escaped in the past and each time mysterious deaths occurred. Harper will have to learn how to return the creature to the realms in which it belongs.

A fascinating urban fantasy that drew me in and released me reluctantly as the story ended. Fans of Ms. Richardson's previous books won't want to miss this latest installment in the story of an unusual private eye. If you haven't read Ms. Richardson, make sure to pick them up.

This title is the third in the series. It stood alone well enough that I never felt that I was missing any of the back story. Reading UNDERGROUND made me seek out the first two titles so that I could learn more about Harper and the Seattle she inhabits.