I first stumbled across Narnia unaware while in 4th grade (US system) when I checked out a book from the library called the Magician's Nephew. I read it and thoroughly enjoyed it. There was thing that caught my child's imagination; the fact that it read as if an trusted old relative were telling the story. Every now and then he'd mention something that would relate to a modern child. The biggest take away from the book was his description of the rings humming. At one point he says something along the lines of, "It was like the sound of someone hoovering several floors below, but they didn't have hoovers in those days." I did not realize the book was part of a series, but never forgot that phrase or the book. 

Later on when I was an adult, my mother (she was a mystic, I'm sure) gave me a boxed set of the books and said I should read them. And I did. About every 4 years or so, I'd pull them out and read them again. Then they sat, until after I watched the movie Flow and felt some sort of Narnian feeling, although I'm sure there is no connection except in my mind. I honestly love the way C.S. Lewis crafted the words so carefully to give the stories that feel that they were being spoken rather than read. So many little "Easter Eggs" planted to help the reader understand and relate it to their own modern world. 

Does anyone here have the same impression or feelings about the word "magic" C.S. Lewis created? 

And now, I guess I'll have to read some of his books for adults!