• 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.

The Underground City is a story by Jules Verne concerning the fortunes of Aberfoyle, a mining village near Stirling, Scotland. After receiving a letter from an old acquaintance, miner James Starr sets off for the Aberfoyle mine. Despite the fact that the mine was thought to have been mined out a decade ago, James Starr discovers a mine overman, Simon Ford, and his family living deep within the mine. The protagonists must contend with unusual and incomprehensible phenomena in and around the mine after Simon Ford discovers a big vein of coal.