The Great Network is an ancient web of routes and gates, where sentient trains can take you anywhere in the galaxy in the blink of an eye. Zen Starling is a nobody. A petty thief from the filthy streets of Thunder City who aimlessly rides the rails of the Network. So when the mysterious stranger Raven offers Zen a chance to escape the squalor of the city and live the rest of his days in luxury, Zen can't believe his luck. All he has to do is steal...