The book "Совершенно секретно" (Top Secret) by Yuriy Nagibin tells the story of a group of scientists who discover a way to travel through time and space using a device they have developed. The device, known as the "Time Machine allows them to visit different eras and places in history, but it also has its own consciousness and can take them on unexpected journeys. As they travel through time and space, they encounter various obstacles and challenges that test their skills and ingenuity. Along the way, they meet a variety of characters, both historical figures and fictional ones, who help shape their journey and provide insight into the human condition. Throughout the book, Nagibin explores themes such as the nature of time and space, the power of technology, and the importance of understanding the past to shape the future. The plot of the book is divided into several parts, each one taking place in a different era or location. In the first part, the scientists use the Time Machine to travel back to ancient Egypt, where they encounter a young pharaoh who is struggling with the burden of his divine status. In the second part, they visit medieval Europe, where they must navigate the complexities of feudal society and the threat of the Black Death.

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