The Lives of Tao | Wesley Chu

A pizza-loving slacker becomes the host of an ancient alien—and a pawn in an ongoing alien war—in this “science fiction romp” full of wit and humor (Huffington Post)
 
When out-of-shape IT technician Roen woke up and started hearing voices in his head, he naturally assumed he was losing it.

He wasn’t.

He now has a passenger in his brain—an ancient alien life-form called Tao, whose race crash-landed on Earth before the first fish crawled out of the oceans. Now split into two opposing factions—the peace-loving, but under-represented Prophus, and the savage, powerful Genjix—the aliens have been in a state of civil war for centuries. Both sides are searching for a way off-planet…