The Purchase of the North Pole
| Author | Jules Verne |
|---|---|
| Original title | Sans dessus dessous |
| Illustrator | Georges Roux |
| Language | French |
| Series | The Extraordinary Voyages #34 Baltimore Gun Club #3 |
| Genre | Adventure novel |
| Publisher | Pierre-Jules Hetzel |
Publication date | 1889 |
| Publication place | France |
Published in English | 1890 |
| Media type | Print (Hardback) |
| Preceded by | Family Without a Name |
| Followed by | César Cascabel |
The Purchase of the North Pole or Topsy-Turvy (French: Sans dessus dessous) is an adventure novel by Jules Verne, published in 1889. It is the third and last novel of the Baltimore Gun Club, first appearing in From the Earth to the Moon, and later in Around the Moon, featuring the same characters but set twenty years later.
Like some other books of his later years, in this novel Verne tempers his love of science and engineering with a good dose of irony about their potential for harmful abuse and the fallibility of human endeavors.