The story takes place in a few places:
It starts out in England, somewhere on the South coast near Bristol. Then the scene shifts to the ship. After the voyage on the ship, the scene is Treasure Island itself.
The mood of the whole story, in my opinion, is pretty dark. Until the very end of the story, there is always a sense of mystery and danger that is lurking just around the corner. When Billy Bones comes up to the inn with a saber scar on his face) and starts acting mysteriously and as if he's worried about the man with one leg, the mood of mystery and danger is set.
Robert Louis Stevenson's adventure novel, Treasure Island, begins in southwest England, moves to the Caribbean, then on to Savannah, Georgia and, finally, back to the West Country of England. The site of the actual Treasure Island is probably based upon the small, uninhabited island of Dead Man's Chest (or Dead Chest Island) in the present day British Virgin Islands. Blackbeard the pirate supposedly isolated a group of mutinous crew members on Dead Chest with a single bottle of rum--thus the origins of the famed sea shanty.
Treasure Island is one of the greatest pirate stories ever told, and it has been retold and used as the basis for many films, including the recent Johnny Depp Pirates of the Caribbean series. Action, murder, deceit, and tropical climes are just a few of the alluring attributes of the novel.
Treasure Island begins in a tavern on the rocky coast of England. The tavern is also a guest house that provides a place to stay for travelers. Places in England include London and Bristol where the doctor lives. They journey is on the water of the Atlantic ocean where they sail towards the islands (Caribbean). They go to Skeleton Island and then to Treasure Island. They see Ben Gunn's cave. They travel to Savannah, Georgia, also a familiar stopping place for the pirate Blackbeard. Some people believe that the intention for the location of Jim’s home was Scotland since that was where Robert Louis Stevenson was originally from.
The mood of the story is dark and mysterious as the pirates are cruel towards one another and also there is the mystery of the location of the treasure.