Valerian and Laureline are exploring Syrte, capital planet of a system of 1,000 worlds. Their mission is to discover whether the Syrtians could present a danger to Earth. What they find is a decaying empire led by decadent aristocrats, a population ripe for revolution, and a mysterious caste of masked wise men who discreetly pull the strings from hidden fortresses. Swept up by the winds of history, the agents of Earth will have to choose a side......

Valerian and Laureline, no longer members of any organisation, are down to doing space deliveries. With Galaxity gone and money getting scarce, their aging spaceship is becoming a hazard, which is pushing Valerian into accepting questionable cargo. After a somewhat rough landing, our two ex-agents, on their way to deliver their goods, meet some individuals with very surprising gifts who claim to be itinerant artists. But is that really all they are?...