I am considering going as an Arcane Archer, but I would like some help understanding the process. Currently I have a level 8 Ranger. To achieve Arcane Archer I assume I'd first have to put a level into Wizard and then another into AA. Afterwards how does it work? Do I then have to put more levels into only Arcane Archer to get the abilities or does Arcane Archer just automatically level up with Ranger? I've been told several different answers and I'd like it all to be cleared up please.
In simpler terms, are PC's just a third class to multiclass or what?