Under the twinkling canvas of Crescent Ridge, budding astronomer Nari and wildlife tracker Mako embark on the Sentinels of Starry Night project, tracking owls, bats, foxes, and fireflies as they dance beneath starlit skies. With telescopes and acoustic recorders, they measure moonrise temperatures, chart moth migrations, and confront city light pollution—often with comical mishaps. When firefly mating dances falter, their playful advocacy sparks a dark-sky movement and a joyous stargazing festival. Packed with laughter, discovery, and heartfelt community spirit, this adventure shows young readers how caring for nocturnal nature deepens our bond with wildlife—and keeps our night skies brilliantly alive.