Ice and Fire Yin-Yang Well

Hearing Yu Tianchen's words, Dugu Bo, who had been waiting for him to reveal the remaining two methods, was momentarily choked up.

"Heh, good lad." Dugu Bo chuckled softly and said, "Very well, since I have already given you my word, I shall not go back on it. However, you must guarantee that the method you provide is absolutely viable."

"It is absolutely effective; I can swear upon my Martial Soul," Yu Tianchen said with a very serious expression.

Dugu Bo nodded. Swearing upon one's Martial Soul was not something to be done lightly. Since Yu Tianchen dared to make such an oath, it meant he was truly not lying.

"In that case, come with me." Dugu Bo stood up and cast his gaze toward Yu Yuanzhen. "Old Dragon, are you coming?"

"Of course I am." Yu Yuanzhen did not hesitate at all and said directly, "I cannot rest easy leaving little Chen alone with you."

"Hmph, judging a gentleman by the measure of a villain." Dugu Bo snorted lightly and ignored Yu Yuanzhen, his entire body transforming into a streak of dark green light that vanished into the air.

Seeing this, Yu Yuanzhen also stood up and came before Yu Tianchen. "Little Chen, hold on tight. We are ready to depart."

"Alright." Yu Tianchen nodded.

Following that, Yu Yuanzhen grabbed Yu Tianchen's shoulder with one hand, soared into the air, and gave chase in the direction Dugu Bo had vanished.

Sunset Forest, core region. After flying for some time, the three arrived at the edge of an inverted conical mountain hollow.

"This is the treasure land you spoke of." Dugu Bo stood with his hands behind his back, turning his head to look at Yu Tianchen. "Since you have some understanding of this place, I suppose I don't need to remind you what to watch out for."

"Of course." Yu Tianchen nodded with a smile and said, "Do you want me to tell you the remaining two methods now?"

"Let's talk about it once we're down there." Since they had already arrived, Dugu Bo was in no rush for a moment or two. "Old Dragon, you must protect this lad well. Even though he can talk about this place as if he knows it inside and out, this is truly not a place for ordinary people to enter. If something goes wrong, don't blame me!"

With that, Dugu Bo didn't look at them and jumped directly into the valley.

"Hmph, does my precious grandson need a reminder from an Old Poison Freak like you?" Yu Yuanzhen snorted coldly, circulating his fierce and powerful soul power. While casting a protective layer over Yu Tianchen, he carried him down into the depths.

Arriving in the valley, Yu Tianchen caught sight of the oval-shaped pool located in the center. The water in the pool was milky white and vermilion, the two colors distinct and clearly separated, never encroaching upon one another. Surrounding the pool, all sorts of plants grew in a myriad of forms, appearing like a paradise for flora.

This was the must-visit spot of Douluo Continent! Ice and Fire Yin-Yang Well!

Gazing at these immortal herbs, Yu Tianchen could barely suppress the corners of his mouth from curling upward. Although he didn't know how to use most of the immortal herbs here, it didn't matter.

Yu Tianchen happened to know how to use the most critical ones.

The Octagonal Mysterious Ice Grass and Infernal Delicate Apricot that Tang San used for his Ice and Fire Refined Golden Body, as well as the Full Moon Wearing Autumn Dew used to enhance spiritual power, perfectly met his current needs.

He intended to test whether he could use the Ice and Fire Refined Golden Body to break through his Great Sun Thunder Body and reach the second level, the Jade Thunder Body.

The latter was in preparation for absorbing a ten-thousand-year third soul ring.

Once a soul ring reaches the ten-thousand-year level, absorbing it requires not only a qualified physique but also the mental fortitude to withstand the spiritual shock of the ring.

Therefore, long before arriving at the Ice and Fire Yin-Yang Well, Yu Tianchen had already made a preliminary plan and preparations for the immortal herbs he intended to consume.

As for the remaining immortal herbs and those rare treasures that didn't quite reach the level of immortal herbs but were still top-tier medicinal plants, Yu Tianchen truly didn't know how to use them yet.

But someone else would!

There was about two years left until Tang San awakened his soul power.

If Yu Tianchen remembered correctly, three months before Tang San awakened his soul power, his Mysterious Heaven Skill would reach a bottleneck and could no longer be improved.

In other words, three months before his soul power awakening, his own soul power would reach level ten!

Reaching level ten meant entering the realm of a Soul Master.

Once he became a Soul Master, he would meet the conditions for sacrifice!

He currently had three sacrifice opportunities left, and breaking through to Soul Elder would grant him more random sacrifice counts from the system. Two years later, it was hard to say if he could reach Soul King, but he would definitely be a stable Soul Ancestor.

Yu Tianchen estimated that by the time he could sacrifice Tang San, as long as he wasn't incredibly unlucky, accumulating a dozen or so attempts shouldn't be a problem.

He refused to believe that with over a dozen sacrifice attempts, he couldn't extract Tang San's knowledge regarding immortal herbs.

He would drain him dry when the time came!

Just as Yu Tianchen was lost in these wild fantasies, Dugu Bo finished a brief patrol of the area. After confirming that no soul beasts had intruded, he walked up to the two of them.

"Hey, kid Tianchen."

Dugu Bo spoke up:

"Can you tell me about those remaining two methods now?"

"Hm? Of course."

Yu Tianchen snapped out of his daydreams, nodded with a smile, and explained the remaining two methods to Dugu Bo.

The three methods he provided to Dugu Bo were actually derived from his own research.

The first was the method Tang San provided to Dugu Bo in the original story, which was considered a relatively safe approach.

However, it was best if the soul bone had a high age, or if it was an External Soul Bone like the Eight Spider Lances.

Otherwise, no one could guarantee whether the soul bone had a limit to what it could withstand.

As for the second method, it involved Yu Tianchen using the power of heavenly thunder to temper Dugu Bo's body while simultaneously purging the toxins within him.

This one actually depended on luck.

Heavenly thunder is the most rigid and yang-aligned force. After Yu Tianchen activated the limit state of the Five Thunder Shock Drums, the lightning he controlled could transform into ultimate lightning, which had a natural suppressive effect on dark and evil things.

Using heavenly thunder to purge Dugu Bo's body would either result in his body being strengthened to the point where it no longer feared the erosion of the toxins, or the toxins stored within Dugu Bo's body would melt away like butter—curing him, but causing his entire life's work in poison arts to be lost.

Finally, there was the third method. To be honest, this was a concept Yu Tianchen derived from the idea of forcing toxins into a soul bone, and it had never been tested.

It involved having Dugu Bo use his soul power to refine something similar to a storage Soul Tool, forcing all the toxins from his body into it to create a Soul Tool that functioned like a magical artifact.

This way, he wouldn't have to suffer the torment of the toxins, and he could even use it to assist in coordinated combat.

Unfortunately, in this era of Douluo I, the methods for crafting Soul Tools had long been lost. To get his hands on the blueprints for a Soul Tool, he would likely have to leave the continent and search for the Sun Moon Continent, which was currently hiding in some unknown corner of the world.