"Touching upon the importance of sharing and kindness, this lovely picture book also introduces a beautiful ocean world and Aztec mythology to young readers."—School Library Journal, starred review

"This gentle aquatic fable reminds us that friendship and selflessness can be powerful beacons against fear and hopelessness, even in times of darkness. A visually appealing tale with a sound message sure to resonate with readers."—Kirkus Reviews

Melissa Cristina Márquez returns with a new underwater story perfect for young listeners! When the ocean goes dark, Maren the whale shark and her best friend, Remy the remora, set out to find answers and to provide light for those they encounter in this encouraging book.

Maren the whale shark loves her life as the biggest, brightest fish in the sea. She spends her days exploring the water around her and finding fresh new snacks as she travels. But one day, the ocean goes dark and Maren’s adventures come to a halt. With only the glow from the scales on her back and her best friend, Remy the remora, by her side, Maren sets out on her greatest quest yet—to cross the ocean and ask the Aztec goddess Huixtocihuatl about the darkness and to figure out how to bring back the light. Along the way she meets new friends and exemplifies the power of sharing!

Melissa Cristina Márquez, Forbes 30 Under 30 Honoree, globally renowned shark scientist, and author of Mother of Sharks, is back to introduce a variety of fish and other fun sea creatures in this picture book celebrating community, friendship, and supporting others in times of need. This ocean adventure is sure to educate and excite young listeners about the sea while passing along positive lessons to be used on land.