im_a_lazy_writer
Annabeth wakes up in her cabin at CHB. Sounds like the start of a normal day, right? Not quite. Annabeth gets a visit from a mysterious immortal (an OC) and turns out, she's somehow 100 years into the future and all her friends are dead. The immortal gives her a box of letters from Percy, which he wrote as a way to cope with Annabeth's disappearance. This story is basically his letters.
Note from yours truly: Screw time travel rules. I just got this prompt from a friend and I'm too lazy to make it conform to the rules so yeah there's not gonna be two Annabeths. Sorry for any confusion. Also, I know they're dyslexic but can we just ignore that? Or y'all can pretend they're reading/writing in Ancient Greek. Oh and ToA never happened