Necroscope: The Touch (Necroscope, #14)

To test of the power of God, an insane triad of malevolent aliens decides to become so evil that God himself will have to stop them. They have already destroyed their homeworld, an entire solar system, and most of their own race. Their next target: Earth!
In addition to advanced science mankind can only dream of, the Mordri Three have the unique ability to forever alter skin, bone, and muscle with a simple touch. Once this powerful touch was used only for healing, but the Mordri Three use it as a weapon, literally turning people inside out, mutating them in front of their horrified loved ones, or seeding them with cancer.
Scott St. John is mourning the painful death of his beloved wife when he is struck by a golden arrow of light--a fragment of the soul of Harry Keogh, the original Necroscope--and gains powers he does not understand. Soon after, a mysterious, beautiful woman begins appearing everywhere he goes. She warns him to keep silent--about what, he does not know--and keeps trying to tell him something critically important, but each time, she vanishes before she can fully explain. And Scott begins to dream of a very unusual Wolf, who begs Scott--in human speech--to rescue him before the hunters come.
A fledgling Necroscope, a telepathic Wolf, a beautiful woman from beyond the stars, the ghost of Harry Keogh, the best of E-Branch's psychic fighting forces, and a dead girl who is not yet ready to seek her just reward must defeat three impossibly strong, psychically gifted monsters whose touch literally melts flesh from bone.