Alex Kerner's mother was in a coma while the Berlin wall fell. When she wakes up he must try to keep her from learning what happened (as she was an avid communist supporter) to avoid shocking her which could lead to another heart attack.

Vladimir Ilyich Ulyanov, better known as Lenin, is remembered as the instigator of the October Revolution of 1917 and, therefore, as one of the men who changed the shape of the world at that time and forever, but perhaps the actual events happened in a way different from that narrated in the history books…

Another planet in the period of medieval times. An employee of the institute of experimental history from Earth, who is send under the name of noble don Rumata of Estor as a spy with a mission to contact the local resident of the institute, arrives in the city of Arkanar. But the resident perishes under an unlucky attempt to make a palace coup, and Rumata have to take his place as the resident. Soon he meets all the horrors of the medieval society - a peasant war, palace coups, mass executions. To continue to be an indifferent watcher of all these horrors turns out to be simply impossible...