Talk low, talk slow, and don't say too much. Well, I think we need a catacomb. Secondly, a ship idea arised somewhere.
Catacombs sound wonderful.
Talk low, talk slow, and don't say too much. A couple of treefort like structures up in some trees, connected only with very thin tight-rope like walking apparatus. Very lightly fortified, these would provide great advantage for archers who were crafty enough to find their way up there. An abandoned house somewhere, which is in ruins but still can provide shelter for those inside. That's a good type of map for this.