human
Make a concise location description of a magical cave in the wilderness with a long tube, shards of mica, a tunnel, and a shaft.
assistant
A long tube has been cut into the rock with great force. The rounded walls are rough and uneven, but the shaft runs in a nearly perfect straight line, a testament to the power of the earth. Shards of mica sparkle in the dark surfaces of the stone. Looking down the tunnel is like gazing into a well of stars.