Still Shadow Sinks Jade

Upon entering the Medicine Nurturing Great Formation, Yi Yun felt as if he had stepped into an abyss. Dark red light flickered everywhere, giving him an almost suffocating sensation. Within the formation, hundreds of millions of years of Heaven and Earth Yuan Qi had gathered. Martial artists with low cultivation simply could not withstand it.

"Be careful."

Old Man Black Stone raised a thin shield, enveloping the Nine Li Witch Maiden within it.

As for Yi Yun, he did not enter the shield. He did not even circulate his own Yuan Qi. Instead, he stood amid the surging tide of Yuan Qi, freely enduring the baptism of its energy.

"Little Friend Yi Yun, this is the great formation left behind by Senior Medicine God. After all these hundreds of millions of years, it's hard to say what dangers may have developed here." Old Man Black Stone reminded him.

"It's fine." Yi Yun took a deep breath of the dense Heaven and Earth Yuan Qi. He saw dark red magma flowing in the distance. Everything here was too familiar to him. This Medicine Nurturing Great Formation was eight or nine parts similar to the Heaven and Earth Grand Array in the Sun Burial Sand Sea.

The difference was that the grand array in the Sun Burial Sand Sea had nearly fallen asleep after being buried for so many years.

The grand array before them, however, had remained active under the Nine Li Witch Kingdom's year-after-year maintenance.

"Whoosh—"

A surging wave of heat rushed over. The heat of these flames was no weaker than the Star Fire Yi Yun had endured inside the Kanglong Ding back then.

But naturally, this was nothing to Yi Yun. With the Evil God's Fire Seed present, these waves of heat could not even approach him.

Seeing