If I stay on consecutive turns in an area do I have to draw preliminary encounters in every turn?
FROM THE RULES wrote:
"Whenever a new Area is played, or one is pulled from the discard pile, an Encounter card is placed facedown in front of the Area card."
You only encounter the preliminary when entering the area. If you defeat it, it's removed. If you don't defeat it, it stays until defeated and you are immediately expelled from the area. Therefore if you are staying on an area consecutive turns then it has been defeated and a new one is not drawn.