Zai is an international assassin who's in it for 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. Crooked accountants, faerie industrialists, hero scientists, down-at-heels gods, secret police chiefs. A hidden continent colonised by refugees from sunken Atlantis, a secret space station, an aerostatic city-state, a post-apocalyptic Faerie Land, a Britain that has taken the hardest Brexit of all. Whoever you are, and wherever you hide, X-Dimensional Assassin Zai will find you... but not until he's taken some happy snaps and tried the local cuisine.