I read this over and over as a kid but can't remember what it's called! It has a group of siblings and their friend who are all mistreated at home who run away to a little island in a lake, they live on the island, hunt, fish, grow food, etc. I remember them hiding when a search party came onto the island, and going to land to sell baskets they had made. It was fantastic!
Did anyone else read it and remember what it was called?