"Armada" is a science fiction novel by Ernest Cline that follows the story of Zack Lightman, a high school student and avid gamer. He spends his days immersed in video games, particularly in a space combat simulation called "Armada." One day, Zack sees a drone that closely resembles one from his favorite game, prompting him to realize that the line between his virtual reality and the real world might be blurring. As the narrative...