X-Dimensional Assassin Zai Through the Unfolded Earth

Zai is an international assassin. He's not a super-spy or a ninja; he's just a resourceful guy with a smidgeon of tradecraft, a complete lack of conscience, and a love of travel. Really, it's all about the travel. So, when his new agency starts to send him on assignment to places that do not exist, it's a dream come true. A hidden continent colonized by refugees from sunken Atlantis; a secret space station where aliens come to trade with humanity; an aerostatic city-state that travels the Earth's stratosphere; a post-apocalyptic Faerie Land; a medieval village operated as both a theme park and a thaumaturgical research center... It's like he's unfolded a familiar map of the world and found an extra page. But the life of an x-dimensional hitman is not all hijinx and happy snaps. When Zai learns that one of his jobs was not properly sanctioned, he himself becomes a target. With one of his handlers gone rogue, can Zai trust his allies any better than his enemies?