Washed up on Turtle Island as a toddler, Ariki has always felt different from the other children. But there’s somewhere she belongs heart and soul: the sea, where she plays with dolphins, sharks, whales and turtles. One day Ariki catches sight of a strange creature in the water, bigger than any she’s seen before – soon after, an enormous shark tooth is found on the sand. When a group of giant sharks start circling the shore, the island’s fishermen are too afraid to go out to sea, but – without fish – the people will starve. Can Ariki save the day?