“What the f*ck?”

When Jiang Ming took out the black stone slab that recorded the Thunderclap Technique from the storage ring, the black sword was dumbfounded.

“It’s over! I’ve been tricked.”

That was the only thought the black sword had at that moment.

Previously, it did feel some familiar aura from Jiang Ming. However, this had completely exceeded its expectations!

This cunning human must have discovered that the black stone slab was made of the same material as it, and thus, tricked it into telling him the technique that could refine the fog in the passage.

“W-where the hell did you get this thing?”

The next moment, the black sword could not hold back its excitement and jumped three feet high, almost blowing a hole in the passage.

“You mean this thing? I just randomly picked it up from somewhere.”

Jiang Ming smiled humbly. However, he did not say where he had found it. The black sword felt like its heart was being shredded. It said in a low voice, “Fellow cultivator, please, I’ll do anything for you. You have to tell me how you got this!”

“Ah, that’s easy. You and I are fellow cultivators. I will naturally tell you everything I know!”

Jiang Ming nodded again, thinking in his heart, “It seems like this material is extremely rare. This black stone slab must be extremely important to the black sword. I might be able to use this thing to get the black sword to give me more information.”

Then, he ignored the black sword and tried to use the technique he had just learned, using the black stone slab as a medium.

The technique taught by the black sword was not complicated. Jiang Ming only tried a few times before he succeeded.

The slate was covered with traces of bloody patterns. A force burst out. In the passage, the turbulent fog poured into the black slate, and in an instant, more than half of the fog in the passage was gone.

However, immediately after that, wisps of gray fog gushed out from the surroundings and filled the tunnel once again. The fog in the tunnel seemed to be endless.

Jiang Ming was overjoyed. This technique was indeed extraordinary. As he flew forward, he urged the technique to vigorously absorb more fog.

With this technique, the speed of absorbing the fog was several times faster than when he came. Jiang Ming also became picky and tried to expel the gray fog out. He only absorbed the black fog that was of higher quality and had a stronger effect on spiritual energy.

Wisps of black fog quickly filled the patterns and cracks inside the black stone slab.

“This black fog can weaken spiritual energy and destroy magical tools and a cultivator’s meridians. If I throw it out when I’m in danger in the future, it’ll be a great killing weapon that can turn the tide of the battle.”

Jiang Ming was very excited.

The black sword followed behind Jiang Ming listlessly. “Ah! Humans are so f*cking cunning!”

It had originally wanted to use this technique to prove its value and use it as capital to stick to this human’s side. Who would have thought that in the first round of confrontation, it would be backstabbed?

“What?” Jiang Ming suddenly stopped.

Among the fog that had poured in from all directions, the black fog in a certain direction seemed to have suddenly become thicker.

His heart skipped a beat, and he naturally shifted to the side of the passage.

The width of the passage was different, and the fog here was mysterious and unpredictable. When Jiang Ming first came here, he had only cared about escaping and had not explored carefully. Now that he used the fog-engulfing technique, he found something unusual.

At the wall of a certain passage, Jiang Ming held the black stone slab in his hand and stared at the faint black fog that was constantly seeping out from a crevice in the rock. His eyes flashed. The fog here was almost ten times denser than in other places.

“Fellow cultivator, there might be an origin behind this crevice!” the black sword quickly came up and said.

“Origin?” Jiang Ming raised his eyebrows.

“Spiritual energy and other mysterious forces in the world do not float without roots. They all have a source, and this source is called the origin. The fog here is endless. Therefore, there must be an origin of this fog nearby. Maybe there’s an even more terrifying force in the origin.”

Jiang Ming glanced at him and said, “Good speculation. Don’t tell me you already knew about it!”

“How could that be? I don’t know anything!” the black sword said hurriedly. However, it could not hide its guilt.

Jiang Ming was too lazy to argue with it. Who knew how many years this weapon had been silent here? It would be strange if it really did not know anything.

“Is there any danger?” Jiang Ming asked.

The black sword shook its head, “As long as I don’t rush to the deepest part, there won’t be any danger. Collecting some of the origin’s fog won’t cause any trouble.”

“And you said that you didn’t know!” Jiang Ming grabbed the black sword, held it in front of him, and slowly walked into the crevice.

The black sword was speechless.