Helen
Inkling
My point stands. Frodo's ordinary world is still a piece of the fantasy world he lives in, and he knows it from the start. Harry, if we're keeping with the comparison, has to learn of his wizard heritage, and by extension the entire wizarding world, when Hagrid shows up. Also, more to the point, LOTR is an entirely fabricated world (unless you believe it to be a mythological retelling of our world's history), and the Muggle world of HP is clearly our own.
Are you suggesting that LOTR is not hero's journey?