Gu Xingbaohe turned his head to look at Gu Feng and found that his eyes were round, his excited look was self-evidently expressed on his face, and his eyes were about to glow.

"Okay, don't talk, let's keep going, we still have a long way to go!" Dr. Pang touched the ground with his telescopic pathfinder stick from time to time as he walked.

Gu Xingbao couldn't help but pat herself on the forehead when she saw that Dr. Pang was holding a flashlight in her left hand, and she couldn't help but pat herself on the forehead, she took out three miniature button lights from the small bag she was carrying, and handed one to Dr. Pang, "Master, stick this button on your chest, you can illuminate the road 3 meters ahead, it's a miniature button light, I have a spare one." ”

After speaking, Gu Xingbao took one of them and handed it to Gu Feng.

After the three of them put the button light on their bodies, the surroundings immediately lit up, and Dr. Pang used a telescopic pathfinder stick to make it more neat, and the speed of the three of them accelerated a lot.

Gu Feng followed Gu Xingbao and walked behind, really feeling bored not to speak, so he asked, "Senior brother, are all these good things that you exchanged for points?"

"Yes, Senior Brother wants?" Gu Xingbao asked, "If it involves instruments, it needs to be approved before it can be given to people outside the army......"

"I know, I just think it's advanced. Then you give us ...... now" Gu Feng touched the button light on the button.

"Silly boy, this is still at the base, it's just for temporary use, and it's not that I won't return it to her!" Doctor Pang couldn't see that his big disciple who couldn't turn his brain meridian turned around, and opened his mouth to scold, "Didn't you say stop talking, the underground is not completely safe, cheer me up!"

"Yes. Gu Feng replied weakly, walking on such a dark road, if you are not allowed to speak, you will suffocate people.

The pitch-black hole**, the silence was abnormal, only the footsteps of Gu Xingbao and others, and the sound of rubbing against the placket.

The long, one-man cave passage began to slope downward, and you had to walk more and more carefully, otherwise you could be carrying several meters away with a single heel.

The air inside the cave became slightly moist, and the wind came out slightly warmer.

As Gu Xingbao and the others moved forward, this situation became more and more obvious, and the temperature around them obviously felt that it had risen.

Gu Xingbao and Gu Feng's faces showed excitement, where there is fire, the temperature will rise.

The corners of Doctor Pang's mouth showed a hint of a smile, the current temperature is still trivial, and when it is really close to the earth's fire, they will cry!

Everyone continued to walk along the entrance of the cave, Gu Xingbao looked at the name card in his hand, they had been walking for several hours, she looked around, and felt that the cave in the depths seemed to be slightly spacious.

But the temperature and the wind in front of you were even hotter.

The air is like cooking, wrapped around you, like being in a hot spring, although it is not too hot, but it is easy to sweat, especially Gu Xingbao still has a mask on his face, that taste is really uncomfortable.

Gu Xingbao secretly thought, fortunately, the climate of Huaxia Country is pleasant, otherwise it would be a crime to wear a mask in a tropical country like Country F!

Gu Xingbao took off the mask on his face, hung it on his arm, and covered his face with a small piece of black scarf, whew!

Gu Xingbao let out a turbid breath, quickly followed Doctor Pang, staggered his figure slightly, and looked ahead.

"Oh my God, it's so hot!" Gu Feng wiped his sweat with his sleeve, and then covered his mouth violently, indicating that he had spoken unintentionally.

Dr. Pang sighed and stopped.

Doctor Pang turned around, looked at Gu Xingbao and Gu Feng, and said solemnly, "The place you have to pass next is dangerous, so you must not speak, and you can't speak softly, and you can't shout!"

"Can you do it?" Doctor Pang skipped Gu Xingbao and looked directly at Gu Feng.

Gu Xingbao was born in the army, and when he received the order, he resolutely carried it out, there was nothing to worry about, the problem was this uneasy big disciple.

"Uh......" Gu Feng was instantly dumbfounded, how could he guarantee that if something happened, he accidentally shouted.

Gu Xingbao looked at Gu Feng's embarrassment, smiled slightly, and said, "Master, I have a way to close my senior brother's mouth, do you think it's okay to use my spiritual power." ”

Gu Feng turned his head to look at Gu Xingbao in a daze, "This, junior brother, can the spiritual power ability still seal my mouth?

Doctor Pang reached out and knocked the telescopic pathfinder stick on the ground, "Baby, you will seal it for your senior brother!"

Gu Feng's eyes widened, and his face was slightly bitter, "I really want to seal it, it's really uncomfortable not to be able to speak!"

"Seal!"

"Yes!" Gu Xingbao stretched out his index finger with a smile and tapped in the direction of Gu Feng's lips.

Gu Feng only felt that his mouth was tight, as if something invisible had sealed his mouth, "Hmm~"

", shut your mouth, senior brother, do you still want to make a sound?" Gu Xingbao frowned, this is not good, such a volume is equivalent to speaking.

Gu Xingbao's index fingers and middle fingers of both hands were brought together, "Then let the vocal cords not make a sound!"

Gu Xingbao drew a circle in the air with his hands with his spiritual power, put it directly on Gu Feng's head, buckled his vocal cords, and untied the confinement on his mouth by the way.

Gu Feng opened his mouth and said something to Gu Xingbao, but he didn't say anything at all.

"Senior brother wants to ask, how can I make my vocal cords unable to make a sound?" Gu Xingbao understood Gu Feng's lips, "Now Senior Brother can't make a sound in his mouth." Don't worry, junior brother, my strength has increased greatly, so this time I can block it for at least 6 hours!"

Gu Xingbao turned his head with a smile, dodging the resentful eyes of the ancient style, and looked at the dark place in the distance.

Doctor Pang looked at Gu Feng with a little erha, laughed twice, and then straightened his face and said, "There will be a lava pool 2 kilometers ahead." ”

"I can't talk about this lava pool, it's full of lava, and the temperature of lava is over 700 degrees!"

"After passing from here, the temperature will get higher and higher, and we need to release our own strength to protect our body before we can pass!"

"At the same time, there is a creature that lives in the lava pool, and as long as it doesn't make a sound, even if the sky falls, they won't come out of the lava pool! Of course, the sound of the stone rolling or something is the usual sound that accompanies the lava pool, so it doesn't matter if we walk around, or even run. ”

When people and animals speak, they will cause vibrations in the air to form a kind of sound wave, which carries energy, but static objects do not have this energy. ”

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