Engaging tale with world history as the backdrop to a hidden alien civil war. For a change the protagonist is an everyman: overweight, sedentary office drone. His alien symbiont fixes that, of course, but it isn’t magic. Good balance of skeptical and trusting.
The interplay between Tao and Roen is the story’s strong point, unfortunately the lack of a distinctive punctuation often leaves the reader confused whether Roen spoke aloud or sub-vocalized to Tao. Chu apparently recognized the problem and has Roen mistaken speak aloud once or twice.
A fun, new science fiction.