Cruz Coronado and his fellow explorers are jolted from their normal routines at Explorer Academy's classroom at sea and thrust into survival mode as the adventure continues in the fifth book in the thrilling middle-grade fiction series.

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.

Hardcover, 216 pages
Published on September 29, 2020 by Under the Stars
ISBN-10: 1426338627
ISBN-13: 9781426338625
9 Book Reviews
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  • minnemousefan12
    minnemousefan12Friday, January 8, 2021 at 11:52 am55 stars
    I could only dream of reading this!
    • sylvie55555
      sylvie55555Thursday, January 7, 2021 at 9:36 am55 stars
      I'm so excited to read this book! I hope my library gets it soon!
      • rileylovesjesus
        rileylovesjesusWednesday, January 6, 2021 at 6:17 pm55 stars
        whoever plays Minecraft reply to this comet and say I do and put Your Minecraft account in MIne is Rosealina Marie.
        • rileylovesjesus
          rileylovesjesusWednesday, January 6, 2021 at 6:15 pm55 stars
          I'm in the club
          • Deandre MastersSunday, December 27, 2020 at 6:53 am
            I love the story
            • dawulf
              dawulfThursday, December 24, 2020 at 1:11 pm
              i thought this book didn't come out yet
              • VeronicaFriday, December 18, 2020 at 5:49 pm
                So great i love thus
                • Alana Thursday, December 10, 2020 at 7:54 am
                  hi there I am interested in this book 📖 I think it is the best book I ever read about
                  • instagram24
                    instagram24Wednesday, September 9, 2020 at 8:37 am55 stars
                    super cool