AfterLife by S.P. Cloward
Prior to recorded history, a small genetic mutation occurred that created a race of humans now found among every civilization in every corner of the globe. Unrecognizable to the rest of mankind but living among us and dependent upon humans for survival, this race is known as Mortui; those whose spirits do not sever from their bodies when they die. They are the source of all living dead legends.
At the time of his premature death, Wesley Lohmann discovers he belongs to this select group. Wes' transition plunges him into the center of a struggle between those who seek to coexist peacefully with humans and those who wish to use and rule them, a struggle that carries over into the treacherous world of dreams. The delicate balance human and post-human societies have maintained for millennia is threatened by a recent scientific discovery that offers Mortui the hope of returning to human life, and human sensation, but at a terrible cost. As he struggles with new and past relationships and tries to find meaning for his continued existence, Wes discovers within himself the true meaning of being alive.
Age: 14 years and up
If you want to read the first two chapters, go to http://www.spcloward.com/