The story is interesting, and so far nicely developed, but you definitely need yourself a Beta reader.
quite a few gramatical errors scattered through it that I picked up on. I will only pick on this Chapter since I have a "two-fer" to show you:
"The two quickly excited once they had their things, still chatting while they did. Harry noticed as the moved out into the terminal that many of the people who had been on the plane were teenagers like him and Ryan."
While they might have been "excited", I rather think they "exited", and "the moved" is either misspelled old ENglish, ot should be "they moved".
Being a professional tech writer I know how your mind sees what you meant instead of what you typed, so find a Beta, and do return the favor by Betaing for them or something.
Dale