Lambor's Hold

The rocks aren't quite pebbles, just tiny pieces of white stone. Or at least, that's what they appear to be. As Taz leans in and inspects them closer, she very quickly realizes that they are actually salt.

"There is a salt mine to the northwest of here," Durlim says. "It's where we get salt when we need it, though there hasn't been any real large-scale mining done there since long before our time. We don't know who originally built it."

"Not too far, just over an hour at a leisurely pace," the mayor replies. "There isn't much to know about them. They don't go in very deep before a spot where they're caved in. There is no other entrance to them as far as I know, and if there is, it's not connected to the main one. We used to go there somewhat regularly to retrieve some salt but since the attacks started and the forest has become too dangerous, only Leffint has gone there."

Stealth

Your group sneaks through the forest, always some distance behind the blue creatures but close enough so you don't lose them. You speak quietly to each other in order to not attract their attention. They head steadily Northwest and don't seem to be aware of you. Belathor steps on a branch once, which breaks with a crack, but when the fey look around and don't see you, they keep going, unaware of your presence.
After a long walk, you reach a clearing. The fey head onto it immediately while you stay at the edge.
There is what looks like the entrance to a tunnel underground in the middle of the clearing. In front of it are five more of the fey, waiting for the three messengers to return, as well as what looks like a tall, beautiful elven woman in an elegant dress in the colors of autumn leaves.
You can't make out a difference between the fey, in appearance or clothing, but from the way they interact, it becomes clear who their leader is as one of the five harshly addresses the others and they reply. You don't understand the language but it looks like the messenger are relaying how their mission went to the others.