If the party takes Darkstone's offer, they are led to a tunnel that heads downward, (opposed to most of the other tunnels which lead up to the surface). The tunnels winds on for quite some time with small off shoots here and there. If the party side treks to these side tunnels, most of them are empty, hold bats, or have mushrooms growing in neat rows. One side tunnel is bright, though. This small tunnel runs into a small cavern and had giant crystals growing everywhere. In the ceiling there is a tube like structure which is bringing light in from the outside world.
Eventually the tunnel leads to a large cavern filled with stalactites and stalagmites, along with small little hovels, goblins and spiders.
Tomorrow: The Goblin Lair