Hearing this, Croyd looked in the direction of Wuqi's eyes and saw a huge black wall in front of the three big trees in front of him. The length and height of the wall were surprisingly large. Croyd looked carefully and found that the black wall seemed to appear suddenly. The grass pressed under him was not completely necrotic. When he stepped back dozens of steps and looked at the original position of the black wall, he felt even more curious. The black wall that had just stood in front of them was actually a huge one.

The black cube, the size of the cube is unimaginable. Croyd subconsciously looked up again and saw a thick layer of black air filled the sky above the black cube's head. The black air condensed and did not dissipate like a large dark cloud, covering the sky above Wuqi and his head. It was not until this time that he realized something was wrong. It was clearly a good weather with the sun shining brightly before they set off, but why did the light suddenly dim when they arrived here?

"Hey! Slug, I feel that there seems to be something wrong here, so let's leave here as soon as possible." Croyd, who had experienced several tests of life and death, kindly pulled La Wuqi's sleeve and persuaded him,

"No! I want to see what is inside this wall!"

"in?"

Wuqi did not follow Croyd's advice, but instead took the initiative to step forward and pulled Croyd, who was puzzled, excitedly to the black wall they had just stood, and pointed to the black walls densely arranged in one direction. Each of them was more than 1 meter long and said with a smile: "Look! These spikes look like some animal's fluff, there are so many."

"Oh." Croyd nodded subconsciously. At this time, it had no intention of listening to Wuqi's explanation. He was just thinking about what this huge black cube was, and why did this thing produce black gas on the top of his head, which seemed to be toxic.

But Wuqi didn't care about Croyd's solemn expression at this time, but was still touching tens of thousands of black spikes with an intoxication. Then he put his ears on the spikes from time to time and listened to something, as if the spikes were living creatures.

Seeing Wuqi making a fool again, Croyd's brow frowned slightly and couldn't help but relax. He pointed to the thorns that were no less sharp than his weapon, shook his head and smiled bitterly: "Can you not be more funny? Do you have to pretend that your head is stubborn all day long? Alas, slug, don't listen. This is a miracle naturally formed by nature, which cannot be explained by our cognition. Don't tell me, you can hear something from this thorn. If there is, it will only be a problem with your ears."

"Old!" Wuqi, who pressed his ear against a few spikes, did not care about Croyd's sarcasm, but listened seriously. Just as Croyd made fun of himself, a golden light suddenly flashed in Wuqi's eyes, and his face was filled with surprise. He hurriedly raised his hand and made a gesture to Croyd.

"What's the matter?" Looking at Wuqi's look like he had something to say to him, Croyd shook his head impatiently and walked towards Wuqi, with a reluctant look on his face, "It's so mysterious."

"Listen carefully!" When Croyd came to him, Wuqi immediately retracted the ear that was pressed on the spike, then pointed to the spike that had been placed on its ear just now, grinned at Croyd, and said mysteriously: "Let's listen and talk."

"Okay." Croyd's answer was still so impatient, even a little reluctant. When he saw these spikes, the same principle as the stalactites naturally formed in the cave, was just a masterpiece of nature's magical craftsmanship. At most, it could be considered a bit strange and didn't need to be so mysterious. However, the unspecified reaction was obviously exaggerated and excessive. Could there be any sound here? What kind of sound can be produced in a huge black cube? It's not like you who pretended to be a ghost or was funny.

Before putting his ears on the spikes, Croyd remembered that Wuqi was a transfer student and had just arrived at the best swordsmanship academy of the Ottoman Empire on the first day. So he had concluded that this should be Wuqi's first time in a big city. This little kid who had already become his friend was probably a native bun who grew up in the countryside. He had never seen anything before and looked novel. Therefore, he was so interested in these spikes. After thinking about this, Croyd comforted himself for a while and stopped being angry with this friend.

However, when he put his ears on the spike that Wuqi ordered him to subconsciously listened to him, his face suddenly turned red and turned pale, and his face showed a look of horror, "Dong...Dong...Dong...Dong..." He actually clearly heard a huge muffled thunder sound that was two short and one interval, and it continued to slowly sounded. Every time two short muffled thunder sounds sounded, he felt that the spike that his ear was against and all the other spikes shrank rapidly inward while the sound was heard. Then these spikes expanded back to their original position before the second two consecutive short muffled thunder sounds. If he didn't feel it carefully, he wouldn't have noticed this subtle change at all, but Croyd felt it keenly.

What is this sound?

With this doubt, Croyd pressed his ears tighter. At this moment, his face no longer had the sarcasm that he made fun of Wuqi, nor his impatient expression. Instead, he had a serious expression of listening, exactly the same as Wuqi's previous focused expression.

However, after listening carefully several times, Croyd still couldn't understand what the dull sound like thunder was, and it was so rhythmic. Could it be that there was something in the black wall? Or was the thunder from other places conveyed through the wall? This huge black cube was just a huge loudspeaker that conveyed the sound? This is not right.

Just when Croyd was thinking hard and couldn't get a reasonable explanation, his shoulder was suddenly patted by Wuqi, and subconsciously turned his head to see him, and the other party was looking at him with a confident smile.

"Slug, do you know why this thing has a sound?"

"Of course!" Wuqi deliberately straightened his waist. It was rare to be proud in front of Croyd, an excellent partner, for a while. Naturally, he would not miss this opportunity. Seeing that Wuqi had not yet wanted to say anything, Croyd saw the other party's thoughts at a glance, sighed deliberately, waved his hand to Wuqi and said, "Forget it, forget it. Since you don't want to say it, I'm not interested in listening. In short, what this thing is has nothing to do with us."

"Old De! Don't do this!" Seeing Croyd so disappointed, he didn't even give him a chance to show off in front of him. Wuqi grabbed his hand with a little depressed depression and hurriedly said, "I won't be able to cooperate. OK. I'll tell you. However, I don't know if I guessed it right."

Seeing that his little trick was completely effective for Wuqi, Croyd laughed secretly in his heart, but he could not reveal any flaws on the surface, so he had to pretend to be very embarrassed and looked at Wuqi reluctantly, and said lightly: "Then what the hell is it?"

"Heartbeat!"

"Oh...ah? Heartbeat?"

Wuqi's answer was very calm, and Croyd's reaction was the same, but after a few seconds, his face suddenly turned pale, and his originally bloody and rosy face suddenly turned pale even worse than paper. Then his brows almost frowned, and he was completely trapped in a solemn meditation.

Heartbeat? A heartbeat like a muffled thunder. Except for the super huge 9th level monster heartbeat, it is impossible for other monsters to have such a big heartbeat. But this black cube is not a monster at all. Judging from its appearance, it does not have the head and body that monsters should have. Could it be that this is the undead monster clan that was extinct ten years ago? But shouldn’t this undead monster be able to see the corpse of the monster before it was resurrected?

Thinking of this only possibility, Croyd immediately raised his head nervously and glanced around the black cube ahead, and did not find a white monster corpse. He immediately denied this speculation. However, just as he shook his head and muttered to himself "Impossible", a crisp loud noise came from the huge black cube.

Before Croyd could come back from his thoughts, he was suddenly pulled in front of him by Wuqi, pointing in the direction where the crisp sound came out and said, "Lao De. Look, that wall seems to be about to crack!"

Cracked? Ah. Not good!

After being reminded by Wuqi, a golden light suddenly flashed in Croyd's mind. He seemed to have caught something. He subconsciously looked up and saw a large hole of seven or eight feet long suddenly appear on the surface of the huge black cube. The volume of the black cube quickly expanded. While its volume gradually expanded, one hole of the same size appeared on the surface of the black cube. As the volume of the black cube expanded, these holes became larger and longer as the volume of the black cube expanded. When Croyd suddenly saw a giant claw with white fluff that was as big as a black bear that he had killed, poked out from the large hole of the black cube, he suddenly remembered that there was a hungry wolf clan in the Necrotic Warcraft clan who had the attributes of a group living and living together. He immediately felt tightened and took Wuqi's hand and ran quickly towards the other side away from the black cube.

"Run!"

"What's wrong? Why do you want to run?" Wuqi asked in confusion when he was suddenly pulled by Croyd.

"That is the most terrifying tribe among the Necrotic monsters, the Necrotic Hungry Wolf Clan, the black cube just now, that is, the huge wall is where they were resurrected. Now they have been resurrected. If they don't escape now, it will be too late to run away later."

"Oh." Wuqi, who knew the situation, wanted to thank Croyd again, but he was about to speak, but before Croyd's words had completely fallen, Wuqi couldn't help but be stunned. While running quickly, he didn't care about panting, and pointed at the front with his mouth open, and said in horror: "Laode, look ahead!!!"
Chapter completed!