The Pevensie siblings were transported to Narnia during the events of ‘The Lion, the Witch and the Wardrobe,’ where they played crucial roles in the battle against the White Witch. However, their departure from Narnia occurs at the conclusion of their adventure. After defeating the White Witch and helping Aslan restore peace to Narnia, the Pevensies were crowned as the kings and queens of Narnia and ruled for many years.
Eventually, after a long reign, they returned to the location where they first entered Narnia—the wardrobe in the professor’s house. In a memorable moment, they discovered that despite having spent decades in Narnia, no time had passed in the real world; they were still the same children who had entered Narnia. Their return to the world of men is tied to the narrative’s theme of the impermanence of childhood and the bittersweet nature of leaving behind the magic of youth.
This departure signifies not just a return to their original world but also reflects the idea that every adventure has its time and a place for growing up. It emphasizes the transition from childhood innocence to the responsibilities that come with growing older. Ultimately, the Pevensies left Narnia because their time there had come to an end, allowing for new stories and adventures to unfold in the future.