This listing is for the complete trilogy. Includes the individual books: 1. The Discovery 2. The Deep 3. The Danger Four average kids have been chosen to spend the summer exploring the depths of the sea. They start the summer thinking that they will learn to dive and study marine life. Kaz, Dante, Adriana and Star soon realize that they are in for much more. First, they find out that the people running the program are covering up something big and mysterious. Then they make the discovery of their lives - sunken treasure of a Spanish vessel. And they're not the only ones who want to keep it. These four kids must take the biggest risks of their lives... and discover that they won't be able to trust anybody - even themselves.