Star-crossed

F/M
G
Star-crossed
Summary
If Rigel was really a third person, if Harriet and Rigel met over the summers and whenever else possible, if Harry had another potioneer to nerd out with, then what?And would those problems, those worries, and those shadows come to haunt them the same?Would they still be star-crossed?
Note
I've been wanting to do something like this in a while and these two have somehow grown on me in just one chapter. Hope you enjoy :)

Chapters