According to the records in the diary, the Daoist of Tongluo refined a total of four pills, and three of them directly killed his three disciples...... And this last one, Xiang Yi found it from a dusty box in the corner of this alchemy room according to the relevant prompts in the diary.

This small box is black and golden, looking indestructible, and when it is opened, it immediately exudes a strong herbal scent, which is surprisingly fragrant.

"Good medicine!"

Wang Yuanxi knew that this "Bat Blood Life Extension Pill" must have fused a large number of heavenly and earthly treasures just by smelling the taste, and he could even say a few flavors of medicinal materials, this last pill was used as an advanced version of the first three, and the Gong Daoist sacrificed his three apprentices to refine it, and presumably the investment in this fourth one was also the most!

Because it was mentioned in the diary that his time was running out, he had no extra time to refine the fifth pill, and all he could do was to gamble on the self-esteem of an alchemist and give full play to the value of medicinal materials as much as possible!

"Is this the last elixir refined by the Daoist Daoist?" Xiang Yi stared at the yellow pill the size of Mai Lisu in the box and fell into deep thought, he reached out and sniffed the smell of the elixir with the method of breathing into his nose.

Just smelling it, Xiang Yi felt that his mind was refreshed, and the lifeless smell of the tomb made him feel uncomfortable for a while.

Even Wang Yuanxi felt that this was a good medicine, which made Xiang Yi begin to doubt the authenticity of the rumors, he looked at Ah Bat hanging on the ceiling and asked, "Could it be that your blood really has the effect of great tonics?" ”

"This ...... How could this be ......" A Bat instantly nervous.

Obviously, Xiang Yi's words scared this "child" a lot.

It hung on the ceiling and began to try to distinguish the ingredients in the elixir, and finally breathed a sigh of relief: "In this elixir, there is no smell of my blood virus. ”

Xiang Yi: "Are you sure?" ”

A bat nodded, like a chicken pecking rice: "Sure and sure." ”

This answer surprised Xiang Yi.

Even Diao Hu felt depressed: "This is the good Bat Blood Life Extension Pill, why didn't this Gong Dao person incorporate the blood of A Bat when refining the fourth pill?" ”

"It doesn't have to be that it's not in my blood." Ah Bat replied, "Our blood carries many viruses, but if these viruses leave our body, they will not survive long after the passage of time. And after our blood leaves the body, as the virus inside dies, it will eventually be purified and turned into a substance like water. ”

Hearing this, everyone suddenly realized.

In other words, the people of the Causeway Dao still added the blood of the bat, but because the blood expired...... Got the so-called "purification".

Now the results are actually obvious.

The three apprentices of the Causeway Daoist died violently after eating the "Bat Blood Longevity Pill" fused with the blood of a bat.

As alchemists, the Daoist people believed too much in the research given by the Daomen, which eventually led to this disaster.

In fact, when the Daoist refining the last fourth pill, Ah Ba's blood had expired, and there was no virus in it...... Therefore, this fourth elixir has actually been successfully refined!

But it's a pity that the people of Tonggong Dao didn't have the courage to take the medicine until the last moment of their lives.

This reasonable inference caused the scene to fall silent for a long time.

After a while, Diao Hu was the first to break the silence: "He has already stepped into the coffin board with half a foot, why don't you eat it?" If it were me, I'd rather die than try! ”

"Because you are not an alchemist, and you don't understand the psychology of an alchemist at the level of a great immortal master like the Gong Dao person."

At this time, Wang Yuanxi said: "The most important thing for alchemists is the success rate, and the Daoist sacrificed his three apprentices in exchange for this fourth pill. ”

"He firmly believes that Daomen's theory is correct, and at the same time is extremely conceited about his alchemy skills."

"Such an arrogant person, if the last one still fails, then the refining power of his Bat Blood Life Extension Pill is also 0%...... This is something that is unacceptable as an alchemist no matter what. ”

"If you keep it and don't eat it, then you still have a 25% success rate."

"I actually ...... for this kind of thing," Diao Hu was in a complicated mood.

When he heard Wang Yuanxi's words, he felt that his research on human cultivators was still too limited.

He has been the pet of Fengxue Zhenjun for so long, and since he became the lord of the Northern Wilderness after the cataclysm, Diao Hu has been looking for the survival trajectory of human cultivators in the past, trying to understand the true thoughts of these human cultivators, and find out the real reason why human cultivators killed themselves.

But now it seems that Diao Hu is still a long way from finding the truth.

With the same mixed feelings, Xiang Yi closed the black iron box and was about to put it in the inventory, when his fingers touched the lower end of the box, feeling a kind of uneven texture on it.

So Xiang Yi immediately flipped the box over and found a long string of tadpole characters at the bottom of the black iron box, not so much words as symbols, densely engraved all over the back of the box.

Xiang Yi used the system to identify and found that the tadpole symbols at the beginning were translated into the four words "The Secret Copy of King Dan".

"What is King Dan's secret copy?"

"Congratulations, my lord, this is probably the alchemy experience recorded by the Gong Dao people! Each alchemist has his own set of alchemy methods, which are usually passed on only to his own disciples. Wang Yuanxi replied immediately.

"......I see," Xiang Yi nodded.

In order to refine the elixir, the three apprentices of the Gong Daoist died before him, and he himself did not have the courage to eat the last one in the end, during this lonely and painful waiting for death, the Gong Daoist finally engraved the back of the black iron box in the form of tadpole charms that he had learned all his life, in case his skills were lost.

However, perhaps even the people of the Causeway Dao did not expect that just a few years after his death, a cataclysm occurred in the cultivation realm that was only aimed at human cultivators.

Countless cultivators have died.

On the contrary, Xiang Yi is now bargaining.

His alchemy attribute bonus has not been turned on, and the pills he refines now are all basic pills that can be directly synthesized by the system according to the materials, and those more advanced and complex pills still need to be operated through the Dan furnace.

Now that he has picked up the personal method left by the Daoist of Tongluo, Xiang Yi feels that his path has suddenly widened a lot.

"Let's go, let's go to Tomb 4."

At this time, Xiang Yi was in a good mood, and the harvest of this tomb visit was full, which was even better than he expected.

When he came to the door on the 4th, Xiang Yi stared at the iron door and frowned slightly.

The system firmly displays: [Advance to Gate 4 with a 50% chance of losing your head]