in the resolution of the story, what happens to the pirates?

The good guys decide to maroon the three remaining pirates on Treasure Island with some supplies and ammunition. As they're returning to England, Long John Silver manages to slip away when they're at port. We don't know exactly what happens to him, but he's clever enough to look after himself. Ben Gunn gets the thousand pounds Doctor Livesey promised, which he spends in under three weeks. The rest of the good guys get their fair share of the treasure. So everyone lives happily ever after, though Jim still finds himself haunted by nightmares of his terrible adventures on Treasure Island.

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