Treasure Island is perhaps THE classic pirate's tale. Robert Louis Stevenson, the author, created a rich story of adventure and treachery on the high seas all seen through the eyes of a boy named Jim Hawkins. Jim starts off as the son of tavern owners in a humble little port village. When an old seaman stays at the tavern, trouble soon follows him in the form of a pirate crew seeking revenge. I will not give away any more specific plot points, but events move forward to a great treasure hunt, treachery, and a surprisingly engaging story for adults as well as children.
Jim Hawkins is the hero of the story and he's a good lad with a stout heart. Long John Silver is the real star, however, and his character is a fascinating character study in moral ambiguity... or perhaps a study in amoral perfection. The pirate language is good and thick but this edition has plenty of notes to help you decipher some of the references that have become too obscure for today's readers. The plot moves along very briskly with no wasted scenes.
In short, Treasure Island well deserves its status as a beloved classic. It's a story of suspense and adventure that can be enjoyed at a child's level, but has substance for adults as well. I would recommend without reserve it to virtually anyone.