Kuhl stands by the door, leaning on his quarterstaff. One leg is akimbo, left sole pressed against his right knee, as he perches like a flamingo. He is content to rest with the others, and nods assent. He is their guide, and it is not for him to suggest a path.
"I'm hurt." Edgar says again more timidly. "I need a chance to recover before we go further." He turns to Kuhl, "You fight bravely for a goatherd. I think we'd be in more trouble than simply being lost if you weren't here."
Short version: You search the goblins and find a key and a 50gp dwarven silver flask filkled with vile goblin wine.
You use the key to open the door to the south west, and discover 3 tied up kobolds, a deep gnome crammed into a little cage, and a human manacled to the wall. The door is such that you could lock it from the inside, providing an ideal place to rest for and hour or eight.