On an island nation in the Indian Ocean, the explorers venture through a vast underwater world and take part in a friendly robotics competition. But the tides of good fortune change quickly. Suddenly, Team Cousteau jumps into action to rescue a faculty member from the brink of death. Meanwhile, the team follows the Cruz's mother's clues to a magnificent tomb and center of spirituality precariously perched on the side of a cliff. There, Cruz is confronted by a familiar foe who's determined to stop him from completing his most important mission of all: Retrieving the final pieces of his mother's cipher. In this life-or-death showdown, Cruz witnesses the ultimate sacrifice and uncovers a hidden message that makes him question his own mortality.
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“A fully packed, high-tech adventure that offers both cool, educational facts about the planet and a diverse cast of fun characters.”
— Kirkus Reviews, praise for the series
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Trudi Trueit has written more than 100 books for young readers, both fiction and nonfiction. She is a gifted storyteller for middle-grade audiences, and her fiction novels include The Sister Solution, Stealing Popular, and the Secrets of a Lab Rat series. Her children’s nonfiction encompasses books on history, weather, wildlife, and Earth science. She is the author of all the narratives for the Explorer Academy series, beginning with Explorer Academy: The Nebula Secret.
Cassandra Morris has received critical acclaim for her voice-over work from Publishers Weekly and AudioFile magazine, earning a dozen Earphones Awards and twice been a finalist for the prestigious Audie Award for best narration. Her voice has also been heard on television in commercial campaigns and numerous Nickelodeon and Disney products. She is the voice of many cartoon characters, including Leo and Luna in Yu-Gi-Oh, Carrie in Barbie: A Fairy Secret, Nathan in Pokémon, and Lola in Angelo Rules.