Dive trilogy

Kaz, Star, Adrianna and Dante are on a marine expedition for the summer, diving to explore an underwater habitat that''s just been altered by a seismic event. What they find, though, is much more than fish -- it''s sunken treasure.

Four adolescents try to raise a British ship which sank in the Caribbean in 1665 with a cargo of gold on board. However, they cannot trust anyone not even themselves.