[I am currently stuck in the college computer lab, wasting time between classes. I'll see what I can do...]
A dozen sober, angry midgets with but a string of sanity holding them high above the sulfur-belching caldera of madness charged wildly down the corridor, howling and whooping like a band of nomad raiders from some inhospitable region of the world. They crashed through the half-reconstructed corridors, slid precariously down the spiraling stairwell of rough stone blocks clinging to the walls of a deep pit, and bumrushed up a ramp-way, around the corner and straight into a large, open space. Their first victims were the booze barrels, and their second, the lard barrels.
Within half an hour, the entire party was passed out amongst the rubble, clothes stained with brand-new colors of booze and occasionally vomit, as others, only recently hearing the joyous news, filed in in a more guarded fashion.
Eric was nowhere near the shenanigans. Several stories below, trudging down a corridor. This was the passage to the first level of caverns, and also connected to the stairway leading deeper still. Everything was clear beyond a minor blockage in the intersection of this corridor and the last. The other miners were getting wasted and fattened, but Eric never could stand alcohol, and was still human in body. And he had perhaps overindulged just a little bit in some of the more delectable berries the herbalists had found. Prickle berries; wild black berries of the most delicious persuasion. Fisher berries and wild strawberries were also found, in smaller quantities. He'd have to spend more time in the woods, from now on.
He soon came to the stairwell. Other than a few steps having fallen out or snapped off, it was intact, and he carefully descended until he came to the caverns, having only collapsed a few more stairs on his way down. The cavern complex suffered serious damage around the southern walls, offering access to the lake beyond. Of course, a massive boulder of dense chert sat in the center of the cavern lake, surrounded by a pile of similar rubble. Detectable to him in the mess was the corpse of a dwarf, and some pet or other. All round the complex were more piles and boulders of rubble that had fallen from the ceiling. There wasn't much to do but add it all to the end of the schedule, and continue downwards, towards the forges and siege bunker, so he did.
Further down, he encountered layers of metamorphic materials, into the second cavern. By the third caverns, the schist and quartzite gave way to granite-gneiss complexes and suitably impressive granite plutons with their multitude of metal veins, and finally to diorite, and gabbro with large olivine content, among many other gems. Deeper still, lay the ultra-mafic green-stone belt and an ancient kimberlite pipe intrusion. The entire continent sat upon this material, thrown out of this ancient volcanic pipe as ancient proto-continents and island arcs collided and generated the friction and heat that welded the whole thing together. Dwarven engineering was the only thing that was keeping the temperature and atmosphere habitable and cool at this depth. ventilation pipes extended from cavern to cavern, in great numbers, and the exchange of air from these shafts provided clean, breathable air, and the introduction of cooler air from higher up. Nether cap was used as materials all around the fortress, to further reduce the ambient temperature and protect other materials from damage. Finally, the magma forges rested at the top of a massive glob of magma rising from the mantle deep below. And just a few stories above them rested the panic bunker, where, Eric hoped, some other survivors still dwelt in safety, with their impressive supply of food and drink.