I recently started DMing a group of players for Pathfinder. They are completely new to the game (and roleplaying in general) and I'm rather new to Pathfinder and completely new to DMing.
We started with the beginner's box adventure with the prebuilt characters. Then the players created their own characters and we started on the bonus adventure contained in the Beginner Box GM Kit. In the first round, the players saved the two dwarven prospectors but avoided all fights (they are a quite peaceful and careful group so far). They did see the earth elemental but did not go near it or attack it but instead returned to the mayor to report. After returning to the mayor they were told to clean out the mine from all dangers and this is where we left off.
One of my players is playing a druid and she likes to solve things peacefully. Her druid actually speaks Terran and she knows that's the language of the earth elemental. I fully expect her to try to talk to the earth elemental and try to find a solution that lets the city use the mine and avoid a fight with the earth elemental.
How realistic is that? I checked the bestiary but it doesn't talk a lot about the motivation and behavior of earth elementals, so I'm wondering how an earth elemental would talk and what it actually wants from life. According to it's stats it has an intelligence of 4. How intelligent/dumb is that? How aggressive are earth elementals? Would it attack if the players aren't really convincing?
How should I handle this situation as a whole? The GM Kit only describes the fight. I don't mind the peaceful solution of convincing the earth elemental to go somewhere else, but it seems a lot easier than fighting it if I would let them role just once for diplomacy. How can I enable a peaceful solution that requires as much effort as the actual fight would? Or would I just award them fewer EP if they don't fight it but take an easier way out?