Fifth Age, year 46. Date unknown.
As we get ever-closer to whatever it is our Master seeks at the bottom of this place, the effect it is having on our world becomes more apparent. The very materials around us have warped under its influence, with previously unknown materials emerging constantly. At first, we began discovering small deposits in the deepest areas of the dungeons only; however, shortly after, similar discoveries were made further up the dungeons, until even the frozen-over areas built nearly 1,000 years ago were populated by these strange deposits: metals, new types of tree, new plants. All of these have emerged since we started the dig.
I can only postulate that whatever lies at our destination, deeper still beneath the ground, is something of such great power that it can change, alter, and dare I say, taint the physical properties of matter in our world.