
Prince Caspian is my favorite of the Chronicles, but that wasn't always the case and a big reason for that was the story's peculiar structure. Suddenly being pulled away from the Pevensies and spending four chapters with a new character before dropping him and returning to the Kings and Queens of old made the story harder to get into as a reader, particularly a new reader of Narnia who had never encountered this way of arranging a story before.
Years later, I've grown to quite like the structure and would not change it, but even so, I've always been a little mystified that Lewis made this storytelling choice.
I've been reading a lot of George MacDonald (a 19th century author who might be described as C.S. Lewis's personal hero, as far as mortal men go) over the past several years and I had a bit of an epiphany while cooking dinner a couple nights ago. Something that's very common in several of MacDonald's books is a story-within-a-story. Phantastes, the novel that Lewis says baptized his imagination at the age of 16, contains a 8k+ word short story in the middle of it. (The Caspian chapters in PC are about 12k in total by comparison.) The Light Princess, The Shadows, and other fairy tales were published nested inside the novel Adela Cathcart, a story about an ill woman who regains her health by starting a story club in her home. At the Back of the North Wind contains the fairy tale Little Daylight.
So I'm starting to theorize that the curious story structure in Prince Caspian may have been a nod to Lewis's literary mentor, or at the very least may be a reason why Lewis was comfortable with arranging the story in a way that many modern readers find puzzling and off-kilter. In my eyes, Caspian's mid-book adventures are a fairy tale in their own right, albeit an unfinished one.
Did you struggle with the structure of PC when you first read the book? Are there any other stories or authors that might have influenced Lewis's decision to include a "flashback" that comprises more than a quarter of the book's length? Do you have any other theories?