The Ogre's Maw
The archway was carved into a fanged ogre mouth. When Fiene and Ermangard passed though the mouth they found murals of cavorting imps painted on the walls beyond. Thirty foot further on the paintings ended as they stepped through another archway which resembled another ogre mouth. At this point they had reached a crossroads.
The corridor north went thirty foot into darkness. To the west the corridor changed from worked stone to a natural cave. To the east it went ten foot before opening into a room. In the middle of the intersection was a rusted metal signpost. On the signpost an arrow pointed west and read "Da' Dragon's Den.".