Later, the dad picks Sandy and Jack up after school. He literally has blood on his hands, and they boys are sure he's killed their mother. The father starts driving and stops only when they reach the Florida keys. At this point Jack and Sandy escape, determined to live in Crocodile Swamp, which they've seen on "local attractions" show on motel TV.
Jack has watched every nature program he could find on TV for years, and he knows what's what. Both boys are bright, adaptable, and very fast learners. They get to the swamp and start their new life. Lots of croc scenes. Also snakes, sharks, and assorted other wildlife. All very well presented. Arnosky writes in a simple, straight-forward style that even adults can appreciate. There are plenty of adventures before the father catches up to them, and what happens after that is gruesome and shocking. Even to me. I guess kids love this kind of stuff.
I liked the book quite a bit, and it's yet another one that shows how much things have changed since I was reading about the Bobbsey Twins.