Odder by Katherine Applegate

Meet Odder, the Queen of Play:

Nobody has her moves.
She doesn't just swim to the bottom,
she dive-bombs.
She doesn't just somersault,
she triple-doughnuts.
She doesn't just ride the waves,
she makes them.

Odder spends her days off the coast of central California, practicing her underwater acrobatics and spinning the quirky stories for which she's known. She's a fearless daredevil, curious to a fault. But when Odder comes face-to-face with a hungry great white shark, her life takes a dramatic turn, one that will challenge everything she believes about herself—and about the humans who hope to save her.

Inspired by the true story of a Monterey Bay Aquarium program that pairs orphaned otter pups with surrogate mothers.