The Sunswept sails on to a remote nesting island in Marley and the Whispering Tides, where sea turtles return each year to lay their eggs, but something is disrupting the pattern. Hatchlings are disappearing, and Marley, Captain Jo, and Kai must piece together how plastic debris and artificial light are quietly confusing the turtles' ancient migration instincts. Rather than a dramatic rescue, this story is about patient observation, guardianship, and listening to the ocean's subtle signals, the whispering tides. Book 2 in the Marley's Treasure Chest series, this beautifully illustrated adventure includes an Explorer Section on sea turtle biology and conservation, a Youth Action Guide, creative activity pages, and Reflection Questions, making it an engaging read for young readers, classrooms, and libraries focused on ocean conservation.