What happened in the control room on that fateful night on April 26? Why was the security system silent? And how could the most experienced operators, with thousands of hours behind them, make fatal decisions? This book is a witness report by Anatoly Dyatlov, Deputy Chief Engineer of the Chernobyl Nuclear Power Plant. The man who was made the main defendant describes in detail the sequence of the experiment, the actual regulations and incorrect installations. You will learn about the processes of managing a nuclear reactor, the heroism of the first hours after the accident, and the system that chose to find the culprits rather than understand the essence of what happened. We recommend this publication to anyone who is interested in history and man-made disasters, seeks unbiased evidence about key events of the 20th century, and appreciates the personal stories of people who stood at the epicenter of great upheavals.