St. Mary's passage

St. Mary's passage connects Hight Street to the Radcliffe Camera in Oxford, and I heard a story about this little pathway. The famous writer C.S.Lewis once exited via the side door of the church, facing St. Mary's passage, on a snowy day. Directly in front of the church exit, there is a wooden door adorned with the relief of a lion and flanked by two fauns. Its view somehow conjured in the young author's mind the picture of "a faun with a parcel in a snowy wood". That image was the seed that, many years later, blossomed in his famous Narnia book series. Now, I am not really certain this is completely true, but I was told that on Internet one could write whatever he wants without being saddled by things like accuracy or truthfulness, so that's it.