David Ruger has always been curious. That's how he landed his charming on-again, off-again boyfriend, Wyler, and how they started in St. Louis and ended up in the Expanse, an alien universe where humans take on supernatural abilities and demons munch on Chinese takeout.

Thirty thousand years earlier, the Expanse was devastated by a gruesome war. The old gods and a group of shifters known as The God Hunters fought and failed to restore order. Little does David know that they've been waiting for the perfect time to try again—and they've set their eyes on him as the one with the power to restore the Expanse to its former splendor.

Strolling along cobblestone streets in a technologically advanced city floating above the clouds is fascinating, and David and his companions venture ever deeper, where strange beings welcome David as an old friend. But what should have been a brief exploration becomes a race against time to save David's life.