The Moon and the Firefly An inspiring modern fable about how the firefly came to glow with light, adapted from Spanish for curious readers all around the world. Travel into the indigenous tribe of the Guarani, where a brother and sister listen to the stories of their grandmother, who opens their eyes to the magic and wisdom of the natural world around them. Why does the firefly give light? A story that teaches about empathy, care, and connectedness. It is a tale of transformation that shows us how everyone has something they can contribute, no matter how small they may seem.