Eremidia: Dungeon!

You heed the calling from Kingdom of Eremidia, where the King himself gives you a mission to escort him to the uncharted island and return to the capital town as soon as possible. Long story short, you arrive at said island, along with the King through all the hardships, and greeted by the expedition team the King had dispatched weeks ago. Both of you receive hospitality and service, and as planned, the King and you will return to the capital town next evening. Later that night, however, you fin...