 Screenwriters Christopher Markus & Stephen McFeely wanted to explore how the Pevensies felt after returning from Narnia , going from being kings and queens back to an awkward year as school children . They noted , " [ C. S. Lewis ] doesn 't much consider what it would be like for a King of Narnia to return to being a 1940 's schoolchild . " They also decided to introduce the Pevensies back into Narnia nearer the start , in order to weave the two separate stories of the Pevensies and Caspian , in contrast to the book 's structure . A sense of guilt on the Pevensies ' part was added , seeing the destruction of Narnia in their absence , as was hubris for Peter to enhance the theme of belief : his arrogance means he is unable to see Aslan . 
