Moana's Sisters Book One

Book 1 of the Moana's Sisters serie
(It's a more mature version of the movie)

Before Moana was born, her family welcomed two daughters. Cassie came first and shortly after came Aaliyah. When the vegetation on Montunui is starting to die, Gramma Tala sends the girls out, to find Maui, demigod of the wind and sea. When they find Maui, they also find his cousins, Oro god of war and Tu the war god. As they venture across the ocean they battle the little Kakamora, successfully escape the claws of Tamatoa, but things go wrong when they run into Te Ka. The girls lose two important people, but brave it out and save the world, defeating Te Ka. When they get home, they are forced to tell their people the happy yet saddening truths about their travels, but they are surprised by the surprise return of a special someone.