Should Lewis have written The Magician’s Nephew earlier in the series or wouldn’t it matter that much?  The Magician’s Nephew does contain the creation story of Narnia and sometimes I wonder why he wrote it second to last instead of at an earlier time for publication. He began The Lefay Fragment after writing The Lion, the Witch and the Wardrobe, but  apparently he wasn’t satisfied with it.  I don’t know why he waited until the sixth book for The Magician’s Nephew to finally tell the creation story of Narnia, but maybe it was then that he knew exactly how to finish the book. But maybe it doesn’t matter that much in which chronological order the books were written.  It seems more important that we have them. And maybe his readers asked him how Narnia came to be during the time when the first five books appeared in publication.