• All content is redone in a new style, with the author's name and the title of the novel at the top.

• For a better glance, a small graphic is added at the beginning of each chapter.

• With a picture of Jules Verne, a detailed biography of him is added.

It is the first novel in which Verne developed the "ingredients" of his later writing, deftly combining a plot full of adventure and twists to keep the reader's attention with technical, topographical, and historical detail. The book provides readers with a glimpse into the exploration of Africa, which was still relatively unknown to Europeans at the time, with explorers going throughout the continent in pursuit of its mysteries.