Aliens came to Earth and offered us all immortality. Most humans took it and left for the stars. Eli and Suna stayed. They wander a nearly empty Chicago, seeking their own meaning and purpose, until an alien social worker named Leon offers to find Eli just one reason to live. But the search may have to wait. A parasite stalks Chicago, and trillions of aliens drop dead throughout the galaxy. Suna uncovers a mystery involving ancient myths and the meaning of human life. But before they can solve those puzzles, they'll have to tame Suna's time-travelling daughter, dodge a rain of teleporting billiard balls, and parley with the King of Chicago and his army of pterodactyl-riding orphans. Eli seeks either love or death, and the parasite offers it to him if he'll betray humanity. Can Suna pull him back, with the meaning of life in her grasp? Hilarious, weird, and deeply philosophical, One Reason To Live is a high concept sci-fi epic about immortality and the meaning of humanity.