When a symbiotic alien being makes its home in Michael Hart’s body, it provides him with new abilities that neither can fully predict, but also has a childlike mind of its own. Then an artificial intelligence tricks him into sending a signal that he fears will bring alien conquerors to Earth. Filled with remorse, he embarks on a journey to defeat the invasion plan, but two minds now inhabit his body. Is Hart superhuman, or the puppet of alien masters? Will he become a hero? Or the greatest traitor that ever lived?<> He is no longer alone, not even in his own body.<>There is another.<>Naïda.