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Dive into an OceanX Adventure! A marine sanctuary is in danger and Marena Montoya feels passionate about protecting it. But how can she convince other people to care? With the help of OceanX mentors, Marena and her friends learn new ways to both outsmart their enemies and save the day.

Marena knows the oceans are the lungs of our planet, and she and her friends are on a crusade to protect them. But how? They learn from OceanX scientists that telling great stories about oceans is essential. But when Marena decides to make her own marine sanctuary documentary, she learns it’s much harder, and more dangerous, than she thinks.

When Marena, Samuel, and Aisha stumble onto a poaching scheme, they have to act fast. However, many things are beyond their control and trying to convince the authorities of the problem puts them all in mortal danger. Marena wants to save the oceans, but can she also save her friends and herself?

MEET THE OCEAN EXPLORERS: 5th-grade junior science journalist Marena, her BFF Aisha, and her reporting partner Samuel use critical thinking and sound science to solve the mysteries of the ocean.

MENTORED BY OCEANX: Marena is mentored by Dr. Anna Knowles, whose character is inspired by the real-life scientists of the world-renowned OceanX project.

REAL SCIENCE: Each mystery is based on actual oceanic science research and discoveries, and is filled with fascinating facts about the ocean world.

COLLECT THE SERIES: Mystery at the Aquarium, Danger in the Deep Sea, Daring Dolphin Rescue also available!