how does the narrator describe in the first chapter?

The narrator sets up the story in flashback. He proceeds by recounting a pirate that resided with his family while he was a boy, living at his father's inn, the "Admiral Benbow," near Bristol, England, during some unspecified part of the 18th century. One day, an old, brown, dirty, ragged seamen with a sabre cut on his cheek, arrives at the inn and satisfied that the inn contains few people, throws down some gold money and stays for several months. Calling himself a Captain, he often sings (especially when drunk) the following verse:

"Fifteen men on the dead man's chest‹

Yo-ho-ho and a bottle of rum

Drink and the devil had done for the rest-

Yo-ho-ho and a bottle of rum

THe descriptions follow detail about this old pirate and Jim's life at the "Admiral Benbow". The chapter is largely seen through the eyes of a boy, as that was what Jim was at the time, and proceeds with a colourful commentary on the goings on that would spawn the adventure of a lifetime. Check out GradeSaver summary below for more info!