The Nobel Prize winner and the smartest man of the twenty-third century sat and worked in his laboratory. Many countries wanted to enlist his support, but Gregor always refused everyone, because his knowledge and principles could not be sold for money, which, by the way, he also had a lot of. And then one day, some organization decides to get rid of the great scientist. Having made his way into Gregor's laboratory, the killer without hesitation shot and killed the outstanding man of the century. And then, when the scientist already thought that he was finished, he opens his eyes. A completely different world appears before Gregor, in which he was reborn as one of the sons of the Grand Duke. What will be his achievements, and what will he be able to change in his life with the knowledge of the twenty-third century?... . Continuation / Fifth volume -