The Sword Xuan Du

Rumble!

As time passed, the thunderclouds above Heavenly Mang Mountain grew ever larger. Lightning serpents filled their depths, thunderlight roared, and it split into five colors.

Azure, white, black, crimson, and yellow lightning intertwined, dazzling to the eye.

Torrents of Spiritual Qi light-rain, like floodwaters bursting through a dam, mingled with the thunderbolts and poured down into the Nine Cauldrons Suppressing World Array.

When A Leng arrived at the foot of Heavenly Mang Mountain and witnessed this scene, a rare trace of surprise and uncertainty surfaced in his narrow eyes.

Just what kind of Supreme Grade spirit treasure was being refined to cause such a spectacle?

The scale of it was simply too terrifying!

Could it be that the Great Xia Imperial Family still possessed power left behind by an Emperor Realm figure?

A Leng strode toward Heavenly Mang Mountain.

This was the territory occupied by the Great Xia Imperial Family, blanketed in layer upon layer of forbidden arrays and guarded everywhere by elite experts.

Yet A Leng carried himself leisurely and swaggered right in.

Along the way, those restrictive powers might as well have been nonexistent; they could not hinder him in the slightest.

Even the guards stationed along the route remained utterly unaware!

It was undoubtedly astonishing.

"So they're using the power of the Nine Cauldrons Suppressing World Array to refine an artifact. No wonder it caused such a huge commotion without affecting Heavenly Mang Mountain in the least..."

"It seems that even if the Great Xia Imperial Family has no Emperor Realm figure, it must possess an array grandmaster whose means reach the heavens. Otherwise, it would be impossible to temper one's natal spirit treasure with such inconceivable methods."

A Leng's gaze flickered as he spotted many clues and hidden mysteries that ordinary people would struggle to