Chapter 645: Chapter 645: How could it be so fast!

Watching the sky full of residual images, Yang Xiaotian's eyebrows were tightly knitted.

Even with Yang Xiaotian's extremely strong soul power, staring at the rapidly changing million Sword Qi made him dizzy.

Many ancestors, seeing Yang Xiaotian's furrowed eyebrows, couldn't help but speculate.

"I heard that the third character, a million Sword Qi, changes so fast that one simply cannot see clearly," an ancestor said. "When the Great Dragon Venerable comprehended the third character, he came here every day, rain or shine, and it still took him hundreds of years to fully comprehend it!"

It took hundreds of years to comprehend the third character of the Heaven and Earth Stele, and such perseverance was nothing short of astonishing.

"Hundreds of years to comprehend the third character is already extremely fast. I heard that the second Sword God of the Sword God Hall took thousands of years and still couldn't comprehend the third character, having to give up in the end."