And Crusoe rescues the two.

And when he cuts the girl's bonds he finds she can't be Friday's real sister, because she's white--see what I mean?
Well, we work it out later that she's the daughter of an English Earl that was wrecked near the cannibal island, and they rescued her, and Friday's mother brought her up as her own child.

She's saved the papers that came ashore, and she has the Earl's coat-of-arms tattooed on her shoulder blade, and finally, after Crusoe has fallen in love with her, and she's remembered a good deal of her past, along comes the old Earl, her father, in a ship and rescues them all.

How about that ?" Henshaw, brightly expectant, awaited the verdict of his chief.
"Well--I don't know." The other considered.

"Where's your conflict, after the girl is saved from the savages?
And Crusoe in the book wears a long beard.