A Fallen Hero (Chronicles of Avilésor: War of the Realms #1)

Cato is the only true half-human, half-ghost hybrid in existence. He's powerful and unique with two divine powers instead of one. The United States government believes he is the key to developing a devastating weapon that will give humankind an advantage when war inevitably erupts between the Human Realm and Avilésor, the Ghost Realm. After being an unwilling test subject in Project Alpha for two years, Cato and the rest of his "lab-family" survive a transport accident to find themselves st...