Lu Yu stared closely at the black wall, and was instantly bewildered. The snail shells plastered on the black wall were wriggling and creeping upward.
It seemed as if the snails hadn't crashed and died but had instead become one with the black wall.
Upon careful observation, Lu Yu noticed that this black wall was likely made from snail shells.
Which meant the wall was crafted using the black earth.
Boom! A loud noise rang out, and Lu Yu turned his head to look, disappearing from his original spot in the next instant.
He appeared at the source of the sound, and before him, a complete snail shell was climbing upward on the black wall.
The transparent snail inside the shell had vanished, leaving only the empty shell crawling toward the top of the black wall.
Perhaps the snail had entered the black wall, making it invisible to Lu Yu, so all he could see was a shell climbing upward.
After a moment of hesitation, Lu Yu decided to climb up this high wall made of snail shells.
