Which British author wrote 'Treasure Island'?

Robert Louis Stevenson wrote the adventure novel Treasure Island.

The Scottish author first developed the story in 1881 after sketching a treasure map to amuse his stepson, Lloyd Osbourne. Stevenson began writing about pirates, a hidden fortune, a mutiny and a ship called the Hispaniola, initially using the title The Sea Cook. The story was serialised in the magazine Young Folks from 1881 to 1882 before appearing as a book in 1883.

The novel follows Jim Hawkins, who discovers a treasure map and joins an expedition that includes the charismatic but dangerous Long John Silver. Its imagery—buried treasure marked by maps, pirate crews and one-legged sea captains—helped shape the standard modern picture of pirates, even though the story is fictional.

Stevenson drew inspiration from earlier adventure and pirate writing, including Daniel Defoe, Washington Irving and Captain Charles Johnson’s history of pirates. Treasure Island was his first major success. Readers sometimes confuse Stevenson with H. G. Wells or Rudyard Kipling because all were prominent British-era writers, but Stevenson also wrote Strange Case of Dr Jekyll and Mr Hyde and Kidnapped.