The book's hero is the outstanding pioneer, Frederick Cook, MD, who announced that he was the first to climb North America's highest peak, Mount McKinley, in 1906, and then reached the North Pole in 1908. However, these claims were soon disputed, and for a long time Cook was accused of hoaxes and lies. Dmitry Shparo, a famous traveler who was the first in the world to reach the North Pole on skis, proves in this book that Frederick Cook actually climbed McKinley. This research fundamentally changes many things in the history of the conquest of the North American continent. The book is addressed to everyone who is interested in travel, history in general and the chronicle of geographical discoveries in particular.