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.