A dolphin named Star

Seaside Sanctuary Marine Wildlife Refuge in South Carolina has a wild pen which is supposed to be healthier for the marine animals brought there, but the three new dolphins are getting sick and no one can explain why. Elsa Roth, whose parents work at the sanctuary, is convinced that a local chemical plant is to blame, but since the water tests do not show contamination she is having trouble getting the adults to believe her--and if she is going to save a dolphin called Star she will have to find some way to prove her theory.