Haven't you ever heard of Peter, Susan, Edmund, and Lucy Pevensie, from Chronicles of Narnia?

I'm surprised at how some people don't even know who the Pevensie children are! I mean, don't these people read books? I've come across some people who look at me like I'm talking Greek, or something! "Huh? Susan? Who's that?" They don't even know who C.S. Lewis is!