When spirited twelve-year-old Tavi joins Dr. Marisol's secret league of young environmental guardians, adventure—and hope—take the lead. From rescuing a stranded leatherback turtle on a polluted beach to engineering rain-garden filters against agricultural runoff, Tavi and the Protectors Green Mission prove that science and teamwork can heal our planet. They map ancient forests with GPS, tame cave darkness with eco-friendly lights, pilot reforestation drones, and inspire neighbors to compost—all while keeping humor and heart alive. This lively, educational journey shows readers that every child has the power to protect green spaces, from windswept reefs to highland woods.