However, as soon as the pill was taken into his mouth, Xiao Yi's heart couldn't help but tremble.

"Hiss... Fire Dragon Cauldron and Earth-Yin Fire are indeed the most precious treasures for refining elixirs. This batch of Energy-fortifying Pills actually produced the grade of a Level Two!" Xiao Yi was surprised, but he was ecstatic. He quickly calmed down, sat cross-legged on the ground, and started to operate the True Scripture of the Mystic Medicine to absorb the efficacy of the pills.

He only felt that a warm medicinal power went straight into his throat and organs. In an instant, it carried the power of Yang all over his body and rushed to his limbs and bones.

The drug power was so overbearing that it had doubled Xiao Yi's vessels in an instant. What's more, the drug power of Pure Yang kept pouring out of his tendons and vessels, steaming Xiao Yi's muscles and bones.

That kind of pain was even worse than taking the Marrow-Cleansing Pill.

Xiao Yi clenched his teeth and tried his best to refine it!

Xiao Yi was delighted to hear the rumbling cheers coming from his ears, as if thousands of horses were galloping. The light in front of him was shining like stars. He knew that he had successfully entered the Late-stage of Earth Class as he wished.

However, when the rumbling sound dissipated and the shining starlight all retreated, Xiao Yi suddenly found that there was a little more faint starlight in his Mind Sea!

Although the starlight was like a fire, bright and dark, Xiao Yi felt a burst of ecstasy in his heart.

"Star of the Mind Sea!" This was the feature of the peak of the Earth Class. It was only half a step away from the Heaven Class realm.

"No wonder the Fire Dragon Cauldron refined the second-level, seventh-grade supreme spiritual medicine! It can break through to the peak of Earth Class in one stroke!" Xiao Yi was overjoyed.

However, the power of the Energy-fortifying Pill was only consumed more than half, and the pain of the steaming muscles and bones was still faintly there.

"Don't be greedy! Otherwise, your realm will definitely be unstable in the future!" Xiao Yi stopped and directed the pure Yang efficacy in his body into his Elixir Field for the time being. He was waiting to slowly refine it in the future.

Xiao Yi leapt up and stood upright. He couldn't help but look at his body. There was no change in his appearance, but when he carefully felt it, it seemed that there was a kind of bright light coming out of his body, like a lotus or Yu Feiyan, which was a sign that his vessels and bones had evaporated and refined by the Energy-fortifying Pill.

Compared to the Middle-stage of the Earth Class, he was no longer the same.

Of course, this was not what made Xiao Yi happy the most. What made Xiao Yi happy the most was the small star in his Mind Sea.

This little star was called the Hidden Star. Its appearance was also the unique feature of the True Scripture of Mystic Medicine, which was different from other skills. As long as the Divine Awareness was provoked, the lights of the Hidden Star would cover the whole body, and then the cultivation of the whole body would be covered at will. Therefore, there was a saying in the Dark Medical Sect that "the star appears in the Mind Sea and is hidden in the city."

For Xiao Yi at this moment, it was indeed an extremely practical method. It could cover up his amazing cultivation, so as not to cause unnecessary trouble.

He gently used his Divine Awareness and the small star in his Mind Sea immediately emitted silver starlight. The stars scattered all over Xiao Yi's body.

When the starlight disappeared, Xiao Yi's aura, which was at the peak of the Earth Class, dissipated a lot in an instant.

"Huh? Master, why is your cultivation reduced to the Early-stage of the Earth Class?" At this moment, Gu Lu had also refined the power of the Tendon-Changing and Bones-Improving Pills. He stared at the change in Xiao Yi with his small black eyes and was puzzled.

"Haha, I hid it with a secret technique. That way, I can escape a lot of trouble!" After Xiao Yi finished speaking, he pointed at the Fire Dragon Cauldron in the distance and shouted softly, "Shrink!"

The giant Fire Dragon Cauldron shrunk to the size of a fist in an instant. It was really mysterious.

Gu Lu was about to dive into the Fire Dragon Cauldron and absorb the Pure Yang Qi, but at this moment, there was a sharp tremor inside Xiao Yi's Divine Awareness! It turned out to be a sign of the Eight Arrays Diagram Array outside the Jishi Hall being activated.

Xiao Yi's heart skipped a beat.

Gu Lu had a connection with Xiao Yi. Without waiting for Xiao Yi's order, he immediately climbed out of the window. After a while, he turned over again and said, "Master, the people of Snake Venom are coming. It's my former master, the Bai Meifu. He's already in the Middle-stage of Earth Class. Moreover, he's good at using poison and can drive away venomous snakes and insects. Hum, huh, I was driven by his evil method. Oh, it's really miserable."

"Don't panic. With your current cultivation, plus the Divine Awareness of your body, he can't control you anymore. It's just the right time. I just got a promotion. Let's see how many tricks he can take under my attack!" Xiao Yi's mouth twitched slightly and he said confidently in a low voice.

However, as soon as Xiao Yi stepped out of the bedroom, he felt a crisp sound of "waves" in his Mind Sea, and the Eight Arrays Diagram Array he had set up in advance was completely broken.

At the same time, "Clang!" with a muffled sound, the door of the Jishi Hall was smashed from the outside and fell to the ground with a loud bang.

With an unusual stench, a man walked slowly into the Jishi Hall like a ghost. He was dressed in black, and the hair on his forehead almost covered his whole face. His figure was thin, like a bamboo pole. However, the insidious smell of his whole body was exposed undisguisedly.

"Master, this is Bai Meifu!" In Xiao Yi's sleeve, Gu Lu reminded him immediately.

Bai Meifu slowly raised his head and looked at Xiao Yi expressionlessly. However, after seeing Xiao Yi's cultivation in the Early-stage of Earth Class, there was a flash of surprise in Bai Meifu's eyes. However, he was immediately replaced by heavy contempt.

"How could a nobody at the Early-stage of the Earth Class make the Snake Venom worried? Even if you die today, you can still feel the glory." Bai Meifu said coldly. His voice was very unpleasant, just like a sharp knife crossing glass, which was disgusting.

Xiao Yi did not speak. He just looked at him coldly.

"Tell me, how did you kill Zhu Yeqing and Chi Lian?" Bai Meifu asked coldly.

"Do you really want to know? Why don't you try it yourself?" Xiao Yi crossed his arms and looked at him with a smile."

"Hey hey, hey hey, you're just a nobody at the Early-stage of the Earth Class? Do you deserve my attack? You think too highly of yourself!" Bai Meifu sneered.

"Your Snake Venom is indeed worthy of its name. It's really annoying to fight to the death," Xiao Yi said with a sneer.

Bai Meifu smiled scornfully and said, "After tonight, you won't be tired of it anymore! Haha, my treasures will make you forget them forever."

After saying this ghastly sentence, Bai Meifu stretched out his hand, took out a tube of green bamboo flute from the back of his waist, and blew it slowly.

With the sound of the flute, which sounded like crying and confiding, a bone-chilling sound was heard from outside the Jishi Hall. A moment later, countless snakes, centipedes, scorpions, and other poisonous insects slowly climbed into the Jishi Hall from its door. They were in various sizes, colourful and smelly. The saliva splashed everywhere it passed, and the ground was corroded and pitted. It could be seen that each of them was highly toxic.

"Haha, enjoy it! This is what I carefully selected for you. Any one of them is enough to make you want to die. Hahaha, I really can't wait to see how they line up and crawl into your body!" Bai Meifu laughed strangely, and the mouth didn't stop playing the green bamboo flute again.

The sound of the flute became faster and faster, as if it was an order to charge. The poisonous creatures became anxious and sped up to attack Xiao Yi.

Xiao Yi looked at the dense poisonous bugs on the ground and frowned slightly. These things were not enough to hurt him, but it was really troublesome to deal with them. His fingers moved slightly, and Xiao Yi's hands were both pinned with a handful of steel needles.

However, before Xiao's needle could move, Gu Lu in the sleeve said, "Master, you don't have to do it. Give these things to me!"

After that, it rolled out of Xiao Yi's sleeve, and at the same time, it screamed. The sound was loud and sonorous, and instantly drowned out the sound of the bamboo flute.

All the poisonous insects, under the sound, couldn't help but stop, and then they all trembled and panicked. They all lay down where they were without moving, as if they were facing a formidable enemy.

The Yin-fire spurted out of Gu Lu's mouth, and it quickly turned the room upside down. As the creatures turned over, they were screaming. Some insects beside it immediately gave off a stinky smell of burning. They were dead. Those who were not touched dared not escape and shivered.

"Gu Lu?" Bai Meifu's expression changed drastically the moment he saw it. From surprise to shock, to the end, he couldn't stop pulling his wrist. However, at this moment, it was obvious that he couldn't think too much. He hurriedly put his bamboo flute into his mouth and whistled. His voice was urgent and sharp.

However, the whistle, which used to be annoying, didn't work at the moment. Those poisonous insects, under Gu Lu's crying, seemed to have been sucked out of their souls and turned a deaf ear to it. Moreover, with the sound of Gu Lu, they slowly gathered in front of Gu Lu.

"Chirp!" Like a king, it stood straight and proudly issued some kind of order.

Hearing this order, Bai Meifu was shocked to see that every carefully selected poisonous insect painfully squeezed out a drop of poison and handed it to him.

In an instant, Gu Lu was covered by a piece of grey venom.

"Whew..." Gu Lu turned its head happily and rolled in the venom. After a while, it absorbed all the venom. In the end, a satisfied look appeared on its face after a full meal.

Looking at the poisonous insects, they were all lying on the ground like soft shrimps. They were no longer as violent and domineering as before.

"Master, it's so great! I haven't had such pure venom for a long time!" After robbing the venom, it jumped to Xiao Yi's shoulder and said happily.

"How can you be so powerful?" Xiao Yi couldn't help but raise his eyebrows and praise, "Yes, you can even refine the insidious poison. When these ordinary poisons meet you, it's like encountering a robber, isn't it?"