As the party speaks, several more of the creatures arrive. Once you are done, one of the recently arrived creatures speaks in Terran "I can speak for the council of our people. We will offer resources as well as the aid of those who choose to fight. What do you need? There are several hundred people eager to do battle (among the many thousands of us). We have our equipment for moving and shaping the earth and the wealth of the earth. But this has been no match for the powers seemingly possessed by the dark invaders - especially, they fill our minds with fear by some strange magic..."
He continues: "In any case, we can offer a passage to the surface or to the tunnels below the invaders fortress. However, as you observed, the deeper tunnels have terrible dangers currently. We believe the worms moved closer to the surface at the time of the invasion though we don't know the connection. They have always been a danger to us, however."
Meanwhile, the Sarmidal keep uncharacteristically good order and have Terex communicate "We are the Sarmidal, we will find resources to fight these invaders if we have to scour the plane..."