The Count of Monte Cristo is an adventure novel written by French author Alexandre Dumas completed in 1846. It is one of the author's most popular works, along with The Three Musketeers. Like many of his novels, it was expanded from plot outlines suggested by his collaborating ghostwriter Auguste Maquet. The story takes place in France, Italy, and islands in the Mediterranean during the historical events of 1815–1839: the era of the Bourbon Restoration through the reign of Louis-Philippe of France. It begins on the day that Napoleon left his first island of exile, Elba, beginning the Hundred Days period when Napoleon returned to power. The historical setting is a fundamental element of the book, an adventure story centrally concerned with themes of hope, justice, vengeance, mercy, and forgiveness.