C911 Arriving at the Oil Lamp
After a few days of trekking, they reached what seemed to be their destination.
Standing in a huge tunnel, this was a tunnel with a diameter of at least 10 meters.
The walls of the cave were extremely smooth and the top was arched. At a glance, it was obvious that it was man-made and definitely not formed naturally.
The walls of the cave were green and seemed to be transparent
