The answer to your question is reserved words. your welcome.
Different- mount olympus is in nyc at the top of the empire state building (an actual place in the human world) & above the world (very top floor that does not really exists to humans); underworld is a place that non humans never see/know of & it's under the world
Answer:
this is really easy lol, look for all the ea's in the words
Explanation:
then ou's, and so on and so forth,straight forward
There is way to much time travel going on and makes the book hard to follow
