Mark Twain's "Those Extraordinary Twins" is a novel written in the late 19th century, centered around Count Luigi and Count Angelo Capello, twins who are physically conjoined, each possessing one side of a dual-headed torso. The novel humorously explores the complexities of their conjoined existence as they navigate society and personal relationships, highlighting the misunderstandings that arise from their unique condition. The narrative begins with Aunt Patsy and her daughter Rowena eagerly preparing for the twins' arrival at the Coopers' home. When the twins arrive amidst a storm, their unusual physicality shocks and confuses the hosts. Comedic moments unfold as Aunt Patsy struggles to understand their nature, leading to misinterpretations about identity and individuality. The twins' contrasting personalities are also established, with Luigi being assertive and Angelo more sensitive. Overall, the opening of the novel introduces readers to a world of humor, social commentary, and the peculiar lives of the twins as they attempt to meet societal expectations.

CHAPTER I. THE TWINS AS THEY REALLY WERE
CHAPTER II. MA COOPER GETS ALL MIXED UP
CHAPTER III. ANGELO IS BLUE
CHAPTER IV. SUPERNATURAL CHRONOMETRY
CHAPTER V. GUILT AND INNOCENCE FINELY BLENT
CHAPTER VI. THE AMAZING DUEL
CHAPTER VII. LUIGI DEFIES GALEN
CHAPTER VIII. BAPTISM OF THE BETTER HALF
CHAPTER IX. THE DRINKLESS DRUNK
CHAPTER X. SO THEY HANGED LUIGI
FINAL REMARKS.