No matter who they were, everyone showed amazement when they saw the High Tower.
It was not that these cultivators were ignorant. On the contrary, all the cultivators here came from the various superpowers, and they were among the most knowledgeable cultivators in the Cultivation World.
The High Tower before them had been built from ordinary rock, yet its surface was covered in runes.
That was what astonished the cultivators. Ordinary rock could not withstand the engraving of runes at all.
Li Yuanba was watching as well. He shared his main body's artifact-refining ability and Formation ability, which gave him a clearer understanding of the material-quality requirements runes had.
The spirit treasures he refined were all made using Fourth Grade top-quality materials as their foundation. Only Fourth Grade top-quality materials could withstand hundreds of millions of miniature Enchanting Runes.
Even with Li Shiming's artifact-refining ability, he could not engrave runes onto mundane rock, let alone so many runes.
The High Tower in front of them was fully a hundred meters tall, standing there like a pillar.
The High Tower did not feel like a building to him. Instead, it was more like a spike that had grown out of the earth.
"I sense the aura of a Formation. This is a Formation Base!" a Great Cultivator skilled in Formations said in a deep voice, voicing his opinion.
"Then does that mean as long as we destroy this Formation Base, we can break the Formation?" another Great Cultivator asked in response.
With a boom, while he was still asking, Great Cultivator Lou's Natal Flying Sword had already struck the High Tower, producing a deafening crash.
All the cultivators looked toward the spot where the High Tower had been struck. Their eyes widened in shock as they stared at that spot on