Napoleon Bonaparte's "Hundred Days" is one of the intriguing and fascinating episodes of European history of the 19th century. On March 1, 1815, the great exile returned from Elba and landed on the French coast. On March 20, he solemnly, amid cries of “Long live the Emperor!” enters Paris. Having united with Marshal Ney, Napoleon becomes a threat to the fragile geopolitical balance established by the Congress of Vienna. The study of the English historian Edith Saunders is a striking example of Northern European historiography of the Napoleonic wars. It combines strict scientific thoroughness with an imaginative manner of presentation, a detailed description of the battles of Ligny, Quatre Bras and Waterloo with episodes from the biography of the French emperor. The book is equipped with appendices and will be of interest to both specialists and history buffs.