Tang Li Xue and Xi'er followed the other people in the black uniforms closely from behind while carrying the wooden chest that should be containing the corpse of the fallen soldier like them.
This hidden underground place was like a giant maze.
Even Tang Li Xue felt dizzy just by following the people in the black uniforms from behind.
After turning right and left dozens of times in each corridor intersection, Tang Li Xue and Xi'er arrived at a hall that was even larger than before.
Tang Li Xue and Xi'er raised their vigilance to the maximum as they observed the huge hall carefully.
There was a pool of mud right at the center of the big hall.
This pool of mud was made from the strange unknown substances. It was boiling hot and covered with an odd formation.
The people in the black uniforms put down the wooden chest on the edge of the mud pool, then they opened the wooden chest and threw the corpse of the fallen soldier into the mud pool.