329W: Caribbean Island Adventures With Photos

I am looking for a book that I think my parents must have brought back from a Caribbean vacation in the 70s. It was the story of a bunch of island kids, boys and girls of different ages, maybe set in the Bahamas, or maybe not that specific, but definitely in the English-speaking Caribbean. Any adults were marginal background characters. There was a hand-drawn map of their island that showed beaches, caves, meeting places, shortcuts, etc. It was essentially a picture book, but scenes from the story were illustrated with black-and-white photographs of black children (actors? the author’s kids and neighbors?) and island scenes. The combination of an exciting adventure story with actual photography was wonderful.

243I: Isle of Capri (Solved)

Children’s fantasy book from the 50s, 60s or 70s, something about “the Isle of Capri”. I think the cover was basic – black and white, or dark green and white. Perhaps there was a butler and a big house…there was some sort of magic going on, I think. The Isle of Capri might have been spelled “Capris.”  I remember that a child goes to a big house, a mansion, to live and there are mysteries and strange things going on. That’s all I can remember!