At 6:40 in the morning, the hectic preparations drew to a close.
Ren Zhong and five others took an eight-meter diameter cylindrical hover elevator all the way down, descending nearly 300 meters underground.
The doors of the cylindrical elevator opened, revealing a spacious and bright enormous cylindrical hall.
On the circular wall of the hall, sprayed in black characters on a white background were numbers from 1 to 48, totaling 48 numbers.
Directly below each number was a maintenance bay for the total of 48 Screw Rock Excavators.
In the bays were parked machines with a cone-shaped spiral drill head like an ice cream cone at the front, and a cylindrical body resembling a tanker, nearly half the diameter of the drill head, at the rear.
This thing looked like a diving rocket firecracker overall.
It was pitch black all over, with no visible weld seams on the surface.
