Undying Divine Medicine, Empress Ruthless's Coffin

"This is terrifying." The big black dog's legs trembled slightly. "Let's go. If even one Primordial King Race member comes out, millions will die and blood will flow for a thousand miles."

During the time of Great Emperor Wushi, the Undying Heavenly Sovereign's followers in Purple Mountain once emerged, causing widespread slaughter. Later, Great Emperor Wushi suppressed them. Even the Undying Heavenly Empress was driven away.

During Great Emperor Wushi's era, he had seen firsthand how terrifying the Primordial King Race was. Although it was a minor issue for Great Emperor Wushi, there was no Great Emperor's leg for him to cling to now.

"Don't be afraid. You just wait here to receive me. I'll go in alone." Lin Yu's goal was the Ten Thousand Dragon Nest. How could he back down at the last moment?

"Then I'll wait for you here. Don't forget me if you get something good." As soon as he heard he didn't have to risk himself, the Black Emperor's greedy heart became active again.

Lin Yu gave him an annoyed glance. This damned dog, truly black-hearted and unrepentant. He wondered how Great Emperor Wushi managed to bring him along back then.

"Demon God Seal!"

Black snowflakes drifted down, then turned dark gold and entered Lin Yu's body, sealing his aura. His presence gradually became faint, almost imperceptible. If someone wasn't standing right in front of him, they would only think he was a rock.

"Hell Furnace!" A distorted force field appeared, its range shrinking until it clung tightly to Lin Yu's clothes. As he continuously adjusted it, the light began to twist, and his figure gradually became transparent.

Just like that, Lin Yu vanished before the Black Emperor's eyes. No matter how he sensed, the area in front of him was completely empty.

The Divine Elephant's Prison Technique was profound and vast. Many of its techniques could be understood instinctively with just a little exploration.

Seeing the Black Emperor looking around cluelessly, Lin Yu's heart stirred. He quietly walked over and, while he wasn't paying attention, furiously rubbed his doggy head!

"Woof woof! Kid, who told you to rub my head!" The Black Emperor was furious. Who was he? Great Emperor Wushi's doggy. Yet now he was being touched by another person. He felt impure.

Haha, watching the big black dog's impotent rage, Lin Yu chuckled inwardly and left.

The Dragon Qi in the Ten Thousand Dragon Nest surged like a tide. Nine great Dragon Veins and countless smaller ones intertwined. Lin Yu used the Source Heaven Divine Technique to control the Dragon Qi, drifting forward like a phantom within the Dragon Qi.

He passed by various Primordial Beings. Everything around him was normal, and he didn't trigger any reactions.

Suddenly, he smelled a fragrant scent that invigorated him. Lin Yu realized what he had encountered.

True Dragon Undying Medicine!

Undying Divine Medicine was definitely a major characteristic of the Covering the Heavens world. Except for a few like the Enlightenment Tea Tree, Ancient Bodhi Tree, and Fusang Tree which were natural Immortal Medicines, most others were born from the tribulations of True Immortals and Immortal Kings from the Immortal Ancient Era.

They were originally Immortal Medicines, but at the end of the Turbulent Ancient Era, they suffered a blow from the will of heaven, causing them to be downgraded. Even so, they could exist for a long time and extend the lifespan of an Emperor for one lifetime.

Undying Divine Medicine contained Immortal Dao laws. If the Divine Elephant's Prison Technique's "Pure Land of Gods" cultivation was suppressed by a divine medicine, it would definitely make it even more powerful.

It was rumored that there were over thirty Undying Divine Medicines in the Covering the Heavens world, but only a dozen or so were clearly recorded. Apart from young sprouts, broken branches, or those petrified and useless, the rest were all in major dangerous areas or protected by Great Emperors and Supremacies. The True Dragon Divine Medicine was the easiest among them to obtain.

Lin Yu arrived at the entrance of the Ten Thousand Dragon Nest. The Ten Thousand Dragon Qi flowed past, and the True Dragon Undying Medicine swayed, absorbing the essence of the ten thousand dragons.

This divine medicine was dazzlingly bright, entirely golden, about a foot tall. Its nine leaves were like clouds, and at the top, it bore a fruit, which was a palm-sized golden miniature dragon.

In the mouth of the golden miniature dragon, there was also a golden pearl, shimmering with light, crystal clear and radiant.

"Wait here obediently for me."

Since he was about to obtain the divine medicine, Lin Yu decided to enter the dragon nest to explore and incidentally rescue the Human Demon Dongfang Taiyi. He silently drifted past the divine medicine, waving his sleeve, not taking away a single cloud.

Entering the nine ancient caves, the interior was a honeycomb of caverns. At the end, there was a huge stone door. The stone door was carved with Primordial Race script, like miniature dragons, sealing the exit of the Ten Thousand Dragon Nest.

"Looks like I need to learn from Brother Monkey today." He mobilized the Dragon Qi to influence the stone door's restrictions, making the area misty. He then used the Hell Furnace to envelop the surroundings, not letting any aura leak out.

Then he took out the Spear of the Underworld God, cut his palm, and dark golden blood dripped down. Black Hell True Flame ignited on the Spear of the Underworld God.

Just like that, Lin Yu began drilling a hole in the stone door with the Spear of the Underworld God. The stone door was like tofu under the Hell True Flame, and soon a hole was opened.

Although the ancient script on this stone door was imprinted with Saint Armaments and was quite extraordinary, capable of withstanding a Holy Lord's attack, its material itself was just that.

After all, the most powerful force in the entire Ten Thousand Dragon Nest was the self-sealed ancient race inside. The stone door only served as a cover.

They probably never imagined that one day someone would drill a hole in the stone door and slip in without triggering the restrictions.

"Looks like I have a connection with dragons!" Having mastered the Source Heavenly Book, this could be considered Lin Yu's half-home ground.

Inside the Ten Thousand Dragon Nest, ancient and沧桑 (weathered/aged) aura permeated. Divine radiance was endless, life essence surged like a tide, and Dragon Qi roared like a great river.

There were countless huge Divine Source blocks floating, sealing Primordial Beings inside. Each one was terrifying.

Some had a large snake body below, seven or eight meters long, and a human body above, but with three heads and six arms.

Some had purple hair and purple eyes, a pair of golden divine wings that looked like they were cast from divine gold, and a snake body below, over ten meters long, with golden scales shimmering, like a majestic deity.

Looking towards the center of the Ten Thousand Dragon Nest, where the Dragon Qi was strongest, ten thousand dragons coiled, dazzlingly bright. A vermilion ancient coffin floated and sank, buried by Divine Source blocks. That was the coffin Empress Ruthless used for her transformation.

The most talented woman in ancient times was absolutely not a false title. Other people who achieved great success always had good teachers and friends accompanying them on their cultivation path. Only Empress Ruthless explored alone, forging her own path.

Especially her achievement of transforming into a Chaos Body in one lifetime was truly astonishing. Chaos Body, one of the most supreme physiques in the universe, on par with the Innate Sacred Body Dao Embryo and Immortal Gold Holy Spirit. Yet someone transformed on their own in one lifetime without any precedent.

Lin Yu cautiously skirted around these Primordial Beings, feeling very stimulated. If he was slightly careless and woke them up, he would only be able to run away with the Leaving Fire Divine Furnace. As for the Black Emperor, he could only let him fend for himself.

There were countless ancient caves within the Ten Thousand Dragon Nest. Only the center area sealed the Ancient Sovereign Race, whose body shape was closer to human form.

In a dragon-shaped ancient cave, there was a three-meter-long Divine Source block, its light dazzling. Inside, a purple-haired middle-aged man was sleeping, looking exactly like a human.

There was also a woman, very serene, just like a human girl. It was impossible to tell she was a Primordial Being.

However, upon careful sensing, one could detect a terrifying power like a vast ocean slumbering within the girl's body. Once it erupted, heaven and earth would be destroyed together!

Lin Yu suspected she was the daughter of the Ten Thousand Dragon Emperor.

He traveled dozens of miles, passing by ancient caves, seeing one sealed Primordial King Race member after another. He also encountered three of Empress Ruthless's coffins and arrived at the deepest part of the Ten Thousand Dragon Nest.

Inside the Ten Thousand Dragon Nest, nine ancient caves resembling true dragons snaked and stretched, extending for tens of thousands of miles.

The end of the cave faced outwards, with all nine dragon heads pointing towards the central area, quite similar to the layout of nine dragons guarding the Purple Mountain.

Underground, the terrain was as majestic as a dragon, filled with ancient dragon-shaped caves, as if ten thousand dragons lay hidden within.

In the central immortal land, countless ancient trees were piled together to form a massive nest, as tall as a mountain, where tens of thousands of great dragons roamed, all formed by the manifestation of Dragon Qi.

The Dragon Qi surged. A gust of fierce wind blew through, revealing an ancient coffin – precisely the Empress Ruthless's fourth-life coffin.

Lin Yu remembered that inside were the Empress Ruthless's corpse and a map of immortal treasures, which recorded the coordinates of the Immortal Realm.

Unfortunately, this map was useless to him. After paying his respects, Lin Yu turned and left.