Okay, the listen check for a battle is a DC -10, and talking is a DC 0 listen check. The DC for listen increase by 1 for every 10 ft and she is 110 ft away from the cave entrance, and I will give a +2 circumstance bonus to hear Maylea speaking because she shouted. So the Listen DC's are 1 to hear a battle, 9 to hear Maylea shouting, and 19 to understand what she shouted. Don't forget the DC might go up more depending on how far away from the caves mouth you are.