I read this a few years back. There are actually two stories in this book. The first is a tragic story of some caves that kids liked to explore. The second, the discovery of a cave. Wow! I knew nothing of cave diving and how dangerous it is. I had no idea how much regulation there was concerning caves. This is a book that’s hard to put down . It is also very educational. I’ve read several of this authors books. They do not disappoint!