Part 1: Mark's misfortune

From MC's perspective:

Looking at the weird monster on the ground. I stopped my movements and started observing it. 

The monster looks like a centipede. But it's not. This strange monster had a sharp long tail at the end of the body. Unlike the centipede, the length of the monster is small.

From its moving direction, I can tell that it's going towards the entrance behind me. Maybe the disappearance of weird gas has triggered the change. 

Seeing that I decided not to attack. Then I appeared in the Gregor Mansion and waited for the monster to pass. 

Through the mirror I saw the weird monster slowly reach the entrance to the unknown metal room.

After confirming it, I appeared outside. In the dark tunnel, then I started walking forward. The path doesn't seem to be ending any time soon.

So it's difficult to see the end of the path with the naked eye.

20 minutes later,