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Following the sound of his own Tianyi's voice, Xu Dong also felt a little dizzy.

"Tianyi, what are you saying? "What does that mean?"

"Longyan Grass is the huge, fire-red medicinal herb, and the Star Fruit is the oval-shaped fruit that I just held in my arms. Is the Ice and Fire Spring Water that has red, blue, and glittering water?"

"Now I should be asking you how you know the names of these things! "Although I don't know if you're pretending or not, but I don't think you're the kind of person who doesn't know how to pretend to understand things."

"Wait, Tianyi. Why don't you know the names of these things? These are only the top-grade medicinal herb, they can't even compare to the lowest grade of immortal grass seedlings! "

Without paying attention to the immortal grass that Xu Dong was talking about, Xu Tianyi continued.

"How would we know!? A few hundred years ago, our entire world encountered a great calamity. Although we survived it, many legacies were broken off. One of them was alchemy.

As for pill refining, it was closely related to the medicinal herb, so even the many methods of identifying medicinal herb had disappeared.

Hearing Xu Tianyi's words, Xu Dong was also shocked, and he thought of something in his heart.

"I learned this ability to identify medicinal herb from the 'dry grandfather' family's medical manual!

And the current Tianyi's medical books were all lost. Then what exactly is that dreamland? How could I have learned these things?

No, I must go and ask Xiao Hong what's going on. "

"Xu Dong, tell me quickly, how do you know the names of these medicinal herb?"

Xu Tianyi's excited voice interrupted Xu Dong's thoughts, pulling him back to reality.

"I, I …"

Listening to his own Tianyi's words, Xu Dong, who did not want to lie to his own Tianyi and did not want to reveal everything about his Blood Dragon Martial Spirit, did not know how to respond.

"Forget it. If you don't want to say it, then forget it."

When Xu Tianyi saw Xu Dong, he just stood there without saying a word.

Xu Dong heaved a sigh of relief. After all, if Xu Tianyi really wanted to continue questioning him, Xu Dong really didn't know how to answer.

But right after, Xu Tianyi's face turned serious again as he said this to Xu Dong in all seriousness.

"I will no longer ask you why you know the names of these medicinal herb, but you have to remember the principle of 'a man's wealth is his own fault'.

In the future, you can just rely on your silence to make a fortune, but you must definitely not tell anyone else that you know how to differentiate between the medicinal herb and the others. Do you understand? "

Hearing Xu Tianyi's words, Xu Dong also knew the importance of this matter. After all, in the entire world, only he could clearly understand the effects of these medicinal herb.

Thus, he hurriedly made a promise …

"I understand, I, Tianyi, will definitely not tell a third person about this."

After hearing Xu Dong's guarantee, Xu Tianyi's expression still remained solemn as he emphasized.

"It's not that you don't want to tell anyone, it's that you don't want to talk about this after you exit this door. Otherwise, you will get yourself killed! After all, the walls had ears, so they had to be guarded against. Do you understand? "

After hearing his own Tianyi's words, Xu Dong understood how important this was even now.

"That's right!" It was precisely his ability to recognize medicinal herb s that was of no use to those top expert s of great powers.