22nd century. The world has completely changed after the devastating war. Evdon Island was completely destroyed by General Adler. After the war and the terrible Blue Plague epidemic, the capital of Hölderlin, where power is shared by the military and an influential family of merchants, is depleted due to a lack of food and resources. But no one can leave the capital without the risk of being shot from the towers built along the perimeter of the high wall encircling the city. The wall will stand for a hundred years - until the last carrier of the virus dies. The only place in the city where residents can make decent money is the Massive Genetic pyramid, managed by the scientist Aurora Santeri. But in order to get into the pyramid, people must take part in a dubious experiment to create a unique serum for the military, the formula of which is based on the blood of a Eudonian soldier who survived the war and, for some unknown reason, gained the ability to quickly heal from any wounds. “Exclusion Belt” series, “Chronicles of a Shattered Kingdom” and the novel “Greta Beyond the Wall” are part of a shared universe, where the plot is united by location, but separated by time: the Middle Ages, modernity and the world of the future.