GrinningJest3r's character here. Sorcerer with Solar and Fire bloodlines. Heads up I do not plan on being completely optimized with this. At least four of my feats are going towards skill focus and eldritch heritage to get some of that Starsoul bloodline as well.
I've had a bit of a creative block this week so no full backstory yet, but the gist of what I've been imagining is, as an evoker and a history buff, Aes is in Sandpoint specifically to gather lore regarding one of the single most powerful evokers in known history, and then bring that knowledge to the City of Brass for... some reason.
So skills are kn arc, hist, nature, planes, then SpC, UMD, and appraise (gotta know the value of and how to use the random things you find during a hunt for knowledge).
High intelligence and charisma but low wisdom, Aes should generally have information to impart and questions to ask, but whether the information is practical to use would really depend on the questions being asked. I guess literal with a hint of falling down rabbit holes would be a good way to describe him.