Gesang looked at the pile of sand that had just flowed in, and sighed, even if Xu Dong dug a hole in the wall, but that road, there was also no hope, behind the relief, there was no sand that was a little deep, and it was a fantasy to dig a hole in the quicksand and steal a hole out.

Therefore, Gesang had to turn his head to look at Xu Dong's side.

Xu Dong and the three of them stood on the edge of the stone gate with a powerful flashlight, and shook it inside for a long time, and no one dared to go in lightly.

At this time, Gesang was numb and said to Xu Dong: "I know a way to check where the mechanism in this passage is......"

Before he finished speaking, the fat man couldn't wait to shout, "Why don't you hurry up, maybe this passage is over, and when you open the stone gate, you will be able to put the treasure." ”

Gesang smiled wryly, and then replied: "Actually, the method is very simple, that is, to throw stones and ask for directions, but there is nothing available here." ”

Xu Dong frowned, thought for a while, and asked, "What do you need?" ”

"The best thing is to have a big backpack, put sand on it, tie it with rope, and throw it in, pull it back, and ......throw it in," Gesang said, looking at the fat man's backpack.

"I'm ...... It's as simple as that. The fat man did not hesitate to take off his backpack, poured out all the bits and pieces in the backpack at once, and then threw the backpack to Gesang and asked Gesang to load the sand.

The sand was poured in from the outside after Xu Dong pried off the relief stone slabs, that is, ready-made, and in less than a moment, Gesang loaded half a backpack of sand and tied it with a rope.

Then he walked to the door with his backpack, asked Xu Dong and the others to step back a little, and asked Gesang to do this "throwing stones and asking for directions" in person.

Gesang carried the fat man's backpack, checked it in his hand, and then said "Hi", threw out the sandbag weighing dozens of pounds, and the sandbag fell a few meters away in the passage, making a muffled sound of "poof".

After waiting for a while, I guess I didn't hit any mechanism, so there was no movement at all.

Seeing that there was no movement, Gesang immediately pulled the rope and pulled the sandbag back, preparing to carry out the second "stone throwing and asking for directions".

Xu Dong looked at it from the side and shook his head, this sandbag weighs dozens of pounds, Gesang's arm strength can't be thrown far at all, and the speed is slow, it can only be thrown out in half an hour, like him, I'm afraid that he won't be able to finish this passage in a day and a half.

Originally, safety was indeed important, but Xu Dong was a little anxious - three of the four people in his group had arrived here, leaving Sang Qiuyu alone, if he couldn't find a way out before Sang Qiuyu woke up, something big would definitely happen.

That's why Xu Dong was a little anxious.

In a hurry, Xu Dong stepped forward and said to Gesang: "Brother Gesang, you are also tired, otherwise, I'll try." ”

Gesang wiped a handful of sweat, hesitated slightly, and then handed the rope in his hand to Xu Dong, and then stepped aside.

This kind of stone-throwing asking for directions is the most consumable, and you have to keep throwing dozens of pounds of sandbags out without stopping, and you can't repeat people in one place.

The effort spent is already large, and repeating people in one place is not only a waste of time, but also a delay in time.

Xu Dong may not care about the waste of body, but if he delays time, it must be a big mistake.

Therefore, Xu Dong took the initiative to stand up and take over Gesang's "throwing stones to ask for directions".

After Gesang pushed it away a little, Xu Dong lifted the sandbag, then exhaled and threw the sandbag out.

Several people standing behind were a little surprised, and under the illumination of the powerful flashlight, everyone found that the sandbag was almost thrown directly by Xu Dong to the end of the passage.

That's a lot of effort! But Xu Dong did it.

But then, a few people were even more dumbfounded.

Xu Dong pulled the rope, and with a flick of his wrist, the sandbag jumped up a foot high, and then fell heavily again, and as Xu Dong continued to shake the rope, the sandbag kept jumping back.

Mu Siqing may have been a little numb to Xu Dong's various surprises, but the fat man, especially Shi Gesang, was really surprised.

Gesang has used the method of "throwing stones to ask for directions" more than once or twice, and he has also seen if others have used it once or twice, and even, the passage behind him is used every day to open the mechanism and let all the arrows in the mechanism be released.

It's just that when this method is used, when it is in the passage in front, it is definitely not such a scene - at that time, several people took turns to fight, and even stepped forward in partnership, but none of them could throw it so far at once.

That's a big bag of sand weighing dozens of pounds!

Whoever else is replaced, it is impossible for people to go out so far at once, and what's more, even Gesang, who has been in this way for a long time, has never seen anyone who can control a sandbag more than ten meters away with this rope, and walk back with a jump.

In this way, the bag of sand is almost like a person automatically "walking" back from the passage, as long as the sandbag "walks" in the place, it should be very safe.

It's just, what kind of trick is Xu Dong? And how did he do it?

Although he was still wearing a gas mask, Xu Dong could almost feel that there seemed to be a few wisps of gaze, which was a bit abnormal.

It's just that for a while, Xu Dong didn't care much about this, and in one breath, he threw the sandbag three times, and the sandbag jumped back and forth three times.

After three rounds of going back and forth, there was no movement in the passage, Xu Dong was overjoyed, and immediately prepared to enter the passage directly.

Without thinking, Mu Siqing grabbed Xu Dong and whispered, "Do it again......"

"Again?" Xu Dong was a little stunned, the sandbag he threw out almost "walked" through the passage, and nothing abnormal happened until now, so it should be fine.

"The weight of this sandbag is too small, I suspect it can't achieve the effect of people walking!" Mu Siqing explained.

This sandbag, to say the least, has thirty or forty pounds, and the strength of jumping can almost be doubled, but the only drawback is that the area of the backpack is too large, and there is a big difference from people walking on it.

This is why Mu Siqing is worried.

The fat guy touched the lenses on the mask and said, "Wonderful, it's a pity I didn't see it clearly, Brother Dong, another ......"

Gesang stood there in a daze, his mind full of all kinds of speculations about Xu Dong.

To be on the safe side, Xu Dong simply took matters into his own hands, added some sand to his backpack again, and then returned to the door again.

Seeing Xu Dong carrying a bulging backpack, the fat guy was stunned again, how much strength did Xu Dong have, carrying such a large backpack of sand, but it seemed that he was carrying a large pillow!

Xu Dong once again lifted the half-heavy backpack in his hand, swung it slightly, and then let go, the sandbag dragged the rope, almost without drawing the arc, and landed directly on the section of the passage with a "poof".

The sandbag hit the ground, and then there was a "rattling" sound in the passage, followed by a slippery spark on both sides of the wall, and the sound of "clanging" was endless in the shining sparks.

Mu Siqing shouted: "There is a mechanism ......"

Immediately, as soon as he stretched out his hand, he pulled Xu Dong back, took a few steps back, and hid on the edge of the stone wall, but Gesang instinctively lay on the ground, but the fat guy was leaning against the stone wall, trying to "squeeze" back, eager to squeeze his body into the stone wall.

After a long while, the sound of sparks and clanging gradually disappeared, but the good thing is that there is not a single hidden weapon that flew out of the door.

When the fat man saw that there was no hidden weapon, he was overjoyed, and the mechanism in the passage made Xu Dong break it!

Xu Dong was terrified, if he hadn't listened to Mu Siqing's persuasion just now and went in directly, he wouldn't have to lie in it directly!

Gesang also slowly got up from the ground, still looking at Xu Dong and Mu Siqing with palpitations.

After a long while, he stammered, "It should be ...... Should...... Try again......"

Xu Dong slowly approached the door, took out a powerful flashlight and shone it inside, he was really startled, on the ground, a thick layer of arrows was pounced, only the backpack was also full of crossbow arrows, and a hedgehog lay on the ground alive.

After a long while, Xu Dong took the rope back into his hand and dragged the hedgehog-like backpack back, but when the backpack came back, the sand inside also leaked completely, becoming a "skin" full of crossbow arrows.

Looking at the dozens of crossbow arrows on the backpack, Mu Siqing frowned, and asked Xu Dong in a low voice, is there any way, try again, since there are mechanisms in it, it will definitely be more than once, if you don't clear them all, you will definitely not dare to continue to go inside.

Xu Dong scratched his head and thought for a while before he walked to the pile of sand, and then squatted down.

The fat guy was a little impatient at this time, took the flashlight, lay on the edge of the door, and carefully looked at the situation in the passage, but it didn't take long for the fat man's eyes to light up.

――Xu Dong held a stone of more than 100 catties and arrived at the door!

Stones, where did this stone come from?

Xu Dong laughed dryly twice, the stone on the wall was weathered strictly, so I just picked out a piece casually!

The fat man turned his head and shone a flashlight, and sure enough, a pile of sand appeared in the passage, but it was much smaller than the previous one.

With Mu Siqing's help, Xu Dong tied the stone with a rope again, then lifted the stone and threw it out.

This time, he was not as lucky as the previous one, and he couldn't trigger the mechanism immediately, but when Xu Dong let the stone go back, it was only halfway through, and sure enough, it triggered a storm like a storm.

Xu Dong and the others didn't dare to be careless, and after a round of crossbow arrows was fired, they threw out stones again, so that they threw out seven times in a row, which actually caused six arrow rains.

At this time, the crossbow arrows scattered on the ground were covered with a thick layer, almost enough to withstand several people walking on them.

Come from!

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