Duo (Duo #5)

When bestowed with the enormous powers of a god... do as gods do! David and Kelly flout enemies and allies alike to reveal themselves to the public and heal the sick and suffering with their nanobot technology. But inside their shared body, David and Kelly are at war for control. With a new threat on the horizon so great that even the Immortals fear it, will the bickering lovers get it together in time to save the world?