George MacDonald's "The Golden Key" is a richly imaginative children's fantasy that delves into themes of adventure, discovery, and the pursuit of truth. Through the journey of two protagonists, Mossy and Tangle, MacDonald employs a lyrical, allegorical style that enchants readers while also provoking deeper philosophical reflections on the nature of reality and the divine. This tale, first published in 1867, is often situated within the broader literary context of Victorian fantasy literature, bridging the gap between fairy tales and serious literature, encouraging children to embrace their imagination and the possibilities of the unseen.