There are signs of a struggle here. As you search the remenants, you find various documents. You learn that this company, Mycogen, does contract work for a Voxtech Research Corporation. The shaft James spoke of is here, and is the only exit out. What you read seems to indicate there is a large open pit quarry nearby. Voxtech has an office there on the top level.

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"Hmm, I hope the "top level" still exists. It might be the best place to find survivors now. The undead thrive down here it seems. I'm starting to get the feeling there's no one alive. Maybe Mycogen figured out the stone, and they all got off this rock. Only one way to find out."