I need a AU in which Adrian and Rocky expanded Grace lifes span and when Simon arrives to Erid he does not time travel at all, meaning that Grace have been around for at least 300 years, but Simon doesn't know this.
Grace looks around Simon's age, a couple of years older than him, but nothing to big to make Simon curious about it, so he doesn't question Grace age until way later, when they have become more closer. Maybe he didn't even question it, and it was just bring by Grace in a casual conversation like.
Grace planning some classes about Earth for the pebbles and how time is different for them: I forgot to ask you, when is your birthday?
Simon who could be reading a manual about how to have your own garden or something: My birthday?
Grace, now curious in the conversation: Yeah, when did you born? When do you celebrate that you have got older?
Simon trying to do memory: In Eden everyone just added a year to their age at the start of each year.
Grace taking notes; Interesting, I was born in winter, that is why they named me Ryland and all that, but is true that I haven't been keeping track of the months lately, I should ask Rocky, he is good at numbers, we could choose a date for you if you want, maybe 1st of January, the start of the a year and all that.
Simon, trying to do mental maths: I would like that I should be...35 next year.
Grace, feeling nostalgic: I remember my 35th birthday, Rocky and I were still in space, he tried to make ballons with xenonite and ammonia, what a silly sweet guy.
Simon, realizing he doesn't know how old Grace is: How old are you going to be?
Grace returning to his notes: I'm going to be a 379-years-old man.
Simon who hasn't know anyone older than 56 just watching in horror.
I think in Eden people would have a lot of respect for old people because those guys where able to survive the longest, people after the Quiet Rupture just died very young, so if you got to old age was because you were a survivor, or a badass, but it also made the younger people not only respect their elders but fear that if they did a wrong move they would end killing them by accident since they would not know how to deal with old people.
Like for them it would be hard to connect the idea of a strong survivor with a nice granny that complains about her bones, so they never knew if feared them or treat them with tenderness.
And Simon, now realizing that he is been way too casual with what is must be the oldest person alive, is having a crisis. He would be very concern when Grace complaing about his knees, or his back, because he can't let this man die now if he can avoid it! He can't be the reason the oldest person ever dies! So he would tried to make Grace have a more healthy life, and always carrying a blanket in case that Grace feels cold because he remembers how the old people in Eden complained about always feeling cold, and would not know if calling Grace sir or not.
Grace has no idea why Simon have change his attitude around him, like one time he cracked his fingers and back, and Simon had run into the room in panic asking if he had broke anything and with a peppermint tea cup.