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Sharks, shipwreck, and sunken treasure in this action packed survival series from bestselling and award-winning author Gordon Korman.Kaz, Dante, Adriana, and Star aren't the best divers in the world. But they've been chosen to spend the summer exploring the depths of the sea.There are only a few problems. First, the sharks. Killer sharks. And then the fact that the people running the program are covering up something big... and mysterious.These four kids are about to make the discovery of their lives -- and put themselves in danger because of it.

Sharks, shipwreck, and sunken treasure in this action packed survival series from bestselling and award-winning author Gordon Korman.What lies in the deep? Not just coral and sand. Not just undersea creatures that have never seen the light. No, the deep holds something even more mysterious and valuable.Kaz, Dante, Adriana, and Star started the summer thinking they were going to study marine life. Now they've found sunken treasure. And they're not the only ones who want to keep it.

After a mean collector named Swindle cons him out of his most valuable baseball card, Griffin Bing must put together a band of misfits to break into Swindle's compound and recapture the card. There a