The plot of the book 'Три последних самодержца' by the author [Author name] is built around the lives and reigns of the last three emperors of Russia - Nicholas II, Alexander III and Alexander I. The story begins with the accession of Nicholas II to the throne in 1894, after the death of his father Alexander III. The young emperor, who was only 26 years old at that time, was faced with the task of ruling one of the most powerful empires in the world, but he lacked experience and knowledge of state affairs. He relied heavily on his advisers, who often took advantage of his naivety and led him down a path of poor decision-making. As the story progresses, we see how Nicholas II's rule became increasingly autocratic, and how he became isolated from his people and the political elite. He made decisions based on his own beliefs and desires, without considering the needs of the people or the consequences of his actions. This led to widespread discontent among the population, which eventually culminated in the Russian Revolution of 1917. The book also explores the life and reign of Alexander III, who ruled before Nicholas II and was known for his conservative and authoritarian policies.

''