"If the person who poisoned the old man did not leave the Zhenwei Building at this moment, through this smell, the person who poisoned him could be found!" Su Ruoxi explained.

"However, how do you find people by smell? Do you want people in Zhenwei Building to smell them one by one?" Xiong Ze asked curiously.

"Don't be so troublesome, I think Big Brother Song transmits these words to the steward Han and the old man. After they know that the poison in the old man's bowl is fish-eye grass, they know how to find out who has come into contact with fish-eye grass. People..." Su Ruoxi said.

Hearing this, Song Yang hesitated for a while, and directly transmitted Su Ruoxi's words to Manager Han and Elder Yu!

Sure enough, Manager Han just looked at Song Yang suspiciously after hearing this, but Elder Yu's eyes lit up!

Then Yu Lao took the bowl of soup that the old man had been poisoned with again from the little second-hand beside him, and checked it carefully. When he found that it was indeed a fish-eye grass, the old man's eyes had a touch of excitement!

"Cough cough... I know everyone's time is very precious, so I thought about it carefully just now, how to quickly find out who was poisoned, but after my verification, I finally remembered that the poison in this bowl of soup was A rare poisonous weed, fish-eye!"

"If there is an alchemist in the presence of the fish-eye grass, it should be clear that the effect of the fish-eye grass is to induce some hidden poisons to occur instantaneously, so let alone this senior has chronic poison in his body, which will occur regularly!"

"Even if it is anyone who has been poisoned today, as long as they take a sip of the soup with fisheye grass, they will instantly become poisonous, because of the particularity of fisheye grass, it also makes fisheye grass once in the sky. The domain is almost destroyed!"

"So the fish-eye grass is very hard to find, but it has not reached the point of extinction, and the fish-eye grass has an inconspicuous hidden characteristic, that is, the fish-eye grass smell, with some fishy smell like stinky fish!"

"Although the smell is very mild, it is very long-lasting. Whether it's the poison pill with the fish's eye grass, or the medicinal powder, as long as you handle something with the fish's eye grass, the smell of the fish's eye grass will be left on the body. It won't go away!"

"And it doesn't matter whether you wrap the medicinal powder containing the fish-eye grass with your spiritual power or wear gloves, it is useless. The smell of the fish-eye grass is directly contaminated on the skin of the person who has touched it, so you don't need to deliberately eliminate it. The smell of eye grass will also disappear!"

"On the contrary, the more you want to eliminate the effect, the heavier the effect will be. If you take a bath every day in order to eliminate the smell of the fish-eye grass, the smell of the fish-eye grass will definitely not disappear for seven days. The smell will accidentally enter the bloodstream, and people will have the stench of fisheye grass on their body for a lifetime..."

"And if you want to find out who poisoned this senior, you just need to find out who is present and who has the smell of fish-eye grass. The fastest way to find the smell of fish-eye grass is to look for insects. There is one..." Yu Lao looked at everyone's shocked and adored expressions, and his heart was instantly happy!

After speaking, Yu Lao did not give everyone a chance to refute, he directly waved his hand, and a big green worm that looked like a big white worm appeared in the old palm!

Yu Lao took Xunwei insect to the side of the soup bowl where the fish-eye grass had been dropped, and let Xunwei insect smell the taste of the soup.

"Let me explain to you that the worms are only interested in the smell of poison, and the non-toxic smell will not move even if the worms smell it!" Yu Lao explained.