"Ding dong."

"Warning, use the Consciousness Probe for more than one minute, continuing to use it is a violation."

"Warning, use the Consciousness Probe for more than one minute, continuing to use it is a violation."

Su Chen was nervously investigating the strange panting sound, and when he heard the system's prompt, he gritted his teeth and withdrew his consciousness.

"I'm going crazy."

Su Chen stomped his feet vigorously, resisting the urge to scold his mother, the system's cold voice. At this time, it kicked his tense nerves fiercely, but he had to bear it with all his might.

But the strange thing is, after Su Chen regained his consciousness. The strange gasping sound seemed to have disappeared, and he couldn't sense Bell's direction now, and he didn't know if Bell was aware of the danger.

He can only pray now that Bell's former status as a special soldier can give him enough self-protection ability, even if the strange panting sound is made by an underground beast. I hope Bell can also hold on until the moment he arrives.

Even so, Su Chen still quickened his pace unconsciously, because he couldn't use spiritual power and spells, the sound of Su Chen's footsteps was particularly obvious in the silent crypt.

Su Chen listened to the sound of his long-lost footsteps, and with an idea, he deliberately increased his strength, and the sound of thumping footsteps was transmitted.

The conditions for completing the lottery drawing program were too harsh, and Su Chen almost suppressed 80% of his strength. Fortunately, his physical strength was still available, and his hearing and sense of smell were also comparable to others.

Su Chen took big steps, because the strange panting sound disappeared, Su Chen wanted to feel Bell as soon as possible, he listened to the movement around him, and searched according to his previous memory.

He didn't know if Bell would run into other crypt passages, and every time he encountered the entrance of other crypt passages, he would stop and carefully identify them to make sure there was no smell of Bell.

According to the calculation in Su Chen's mind, about 1 minute passed. He suddenly heard a slight voice coming from ahead.

At first he thought it was the strange panting sound, hesitated for a moment, and at that moment he heard it clearly, it was a slight friction sound.

The sound was very similar to someone deliberately rubbing the soles of their shoes on the ground and moving slowly, appearing in the dimly lit crypt, which was a little weird.

However, compared to the previous panting sound, this sound made Su Chen feel relieved.

He was able to confirm that there was only one living person besides him in the crypt. That was Bell, and the friction sound was probably Bell.

The sound of rubbing continued, and Su Chen quickly smelled a familiar aura, and strode forward.

After walking for more than fifty meters, there was a bend in front of him. Su Chen reached out and touched the surface of the crypt passage. His hands were moist, but there was no sandy feeling.

At this time, the friction sound was in front. Su Chen considered whether to say a word first. He was afraid that his sudden appearance would scare Bell. Just as he was hesitating, the friction sound suddenly disappeared, and then he heard the sound of someone's breathing approaching quickly.

Turning around, he stood face to face with the person opposite. "Are you OK?"

Bell's breathing obviously paused, and then he said calmly: "I know you are here, did you hear any strange sounds?"

Su Chen said: "I found you by following the strange voice."

Bell said, "What did you hear?"

"The sound of the soles rubbing against the ground," Su Chen smiled, "The quality of your shoes is very good. They haven't broken after so long."

Bell subconsciously looked down, and when he found that his eyes were darkened, he was stunned for a moment. When he realized it, he also laughed, "I'm actually looking for air holes."

Su Chen wondered: "Blowhole? What kind of blowhole, why is there a blowhole in this place?"

Bell didn't answer right away. It seems that after carefully identifying something for a long time, he said, "Guatemala has the largest underground cave in the world. Some people speculate that the underground cave here is connected to the center of the earth."

guess?

Where is the expert?

so imaginative

The distance between the earth's center and the earth's surface is more than a Guatemala crypt can communicate

Su Chen shook his head. A little speechless, Bell couldn't see his expression clearly, and then said: "However, no one has confirmed this guess. It's just that when someone came to Guatemala to explore, he heard a strange voice. He called that voice the center of the earth. sound."

"The sound of the heart of the earth?"

"That's right," Bell said, "It was a very strange sound, as if someone was panting rapidly. He thought of the speculation that the crypt was connected to the center of the earth, so he called that sound the sound of the earth's center."

Su Chen said: "He can be sure that the sound is air flow? Didn't it come from any animal?"

Bell affirmed: "That person stayed in Guatemala for half a year, just to wait for that voice. According to him, the voice does not appear regularly, but once it appears, it will not disappear soon."

"Besides, he once heard that voice appearing next to him with his own ears, and turned on the strong searchlight. But he didn't find any living things, only a few finger-thick air holes on both sides of the crypt."

Su Chen said: "So you have been rubbing the ground before, just to find air holes."

"That's right," Bell said here, rubbing his hands in frustration, "I heard that sound just ten minutes ago, but when I fell, I had some concussion, my hearing was not very sensitive, and my judgment was wrong. direction."

Su Chen sighed deeply, how strong this person must be to be able to keep thinking about finding that inexplicable voice when he was concussed.

An idea popped up in his mind, Bell's willpower is so firm, if he cultivates, he will definitely give up his life and never give up until he reaches his goal.

Su Chen told Bell that he did hear that strange sound, but he thought it was an animal in the crypt, and he didn't care that they were not far from the place where the sound appeared. If Bell wanted to go there, he could take him to find it. .

Of course Bell was willing, and Su Chen brought it directly to the place where the previous voice appeared. As soon as he got close, he heard the familiar panting sound.

Bell said in a low voice, God bless, and lay down on the ground with his hands on his hands, and crawled towards that side.

Su Chen was also very curious about that voice, and it was only when he passed by that Bell took out a roll of string from his backpack.