Broken Angels (Eve of Light, Book I)
Grey-Sun, Harambee K. Three years after contracting the White Fire Virus, Watcher agent Robert Goldner still considers himself damned and confused. Damned to live with a body overrun by billions of sentient parasites. Confused that the deadly infection has not killed but instead permitted him and random others to live on in tortured bodies, "blessed" with the supernatural ability to manipulate the properties of light.
The only true blessings Robert believes in are ...