During the summer her grandfather is dying of leukemia and death seems all around, 15-year-old Vicky finds comfort with the pod of dolphins with which she has been doing research.

Danger lurks just below the surface ... Jennie McGrady thinks her vacation is doomed when a bomb threat delays her flight to a dolphin research lab in Florida. But then she meets Sarah, a girl who desperately needs her help to solve a two-year-old murder, and Jennie's detective instincts tell her something is very wrong. Sarah Stanford has lived in silence since her father's death. Now she's beginning to remember what happened the night of his murder-but...

When testing for a new missile defense system results in the destruction of a tour boat, dolphin researcher Kaia Oana and Navy officer Jesse Matthews investigate, putting their lives in danger even as sparks fly between them.

"Pearl is a magical dolphin of the Salty Sea, and today is her first day of school. Her classmates Echo and Splash make great friends! Together they start learning dolphin skills like magic, music, and jumping. But another student, Flip, just won't stop bragging. When he accepts a dare from an older student, he ends up in terrible danger from a shark! Can Pearl and her friends save him? It's an exciting first day at Dolphin School!" -- cover

A second prophesy, this time involving dolphins, comes true for eleven-year-old Martine, an orphaned South African girl who has mystical powers over animals, when she embarks on a school trip to study marine life off the coast of Mozambique.

With practice, a young dolphin learns to leap out of the water like the adults do.

Ten-year-old cousins Titus, Timothy, and Sarah-Jane go on vacation together and set out to discover why the dolphins they are visiting don't seem to want to eat.

A diver and his friends rescue a family of dolphins from Bahamian poachers who are selling the dolphins to marine parks.