Poplar watched carefully, quickly shook his head, and said, "No, there should still be a foothold on the head! You see where those black thorns fell, they didn't reach the top, it should have touched the mechanism when the javelin fell!"

Poplar spoke, reaching out to take the javelin from Iron Bull's hand, and raised his arm again to shoot out.

There was another "poof", and the tip of the javelin first smashed against a stone slab at the top of the passage, and then bounced, but this time instead of falling back into the straight passage in front of him, he fell sideways into the passage that bent to the left in front of him.

Neither of them saw a blackthorn shoot down, nor did they hear a "whoosh" sound in their ears, which means that at least in the bend ahead, there will be no spikes shooting down from the top.

Tie Niu was overjoyed and said: "It seems that the passage in front of you can settle down, these black thorns before, as you said, it was your javelin that triggered the mechanism when it fell, it seems that this mechanism is really sensitive enough!"

"yes, so let's be more careful!" said Poplar.

In order to minimize the weight on his body, he removed the air tank from his back.

With a bit of luck, he leaned into the passage with his upper body, pressed his arms against the sides of the passage, and then supported his body with the friction between his arms and the steep wall, slowly lifting his feet off the ground.

This action is not difficult to say, and the average person can probably do it.

However, when Poplar tried to support the walls on both sides with his two feet, he found that the walls were steep, and the width between the two walls was not large enough, and he could not stretch his legs, and the soles of his feet could not touch the walls, so naturally he could not generate the power of rubbing.

Therefore, he could only curl up his two calves, and then spread his thighs as much as possible, using the tension of his thighs and the friction between his knees and calves and the walls on both sides to support his body.

This action is so difficult, I'm afraid that there is not one out of 10,000 people.

But Poplar was no ordinary person after all, he not only supported his body with this extremely difficult movement, but also released his arms and tried to move forward.

After that, he supported his body with his arms and moved his legs to move on.

The Iron Bull was only terrified from the outside of the passage. Luckily, Poplar's arms and legs alternately moved, and although it was slow, it showed no signs of sliding down.

It was only twelve or thirteen meters away, but it took nearly twenty minutes for Poplar to finally reach the top.

The top turned to the left, but after the turn, the passage took on an arc like the previous submarine tomb, as if it was designed along the shape of the mound.

The javelin of the Iron Bull fell on its side on the ground of the arc passage, and when Poplar looked up, he found that there was no such small hole at the top of the passage.

That means that there won't be any blackthorns shooting down in this passage.

But if there were other mechanisms, he was not sure, and when Poplar tried to drop his feet to the ground, his nerves were tense, and he was afraid that something would suddenly happen, and he would have no place to dodge.

Thankfully, his feet landed firmly on the ground, and no mechanism hit his head or came out of his feet.

Poplar breathed a sigh of relief, only to feel that his arms were sore and his legs were aching, and he was really more tired than fighting with the sea ghosts.

So Poplar moved his arms and legs first, and then the Iron Bull threw the two air canisters and the explosives bag over first.

With the skills of the two of them, naturally one throws it easily, and the other catches it steadily.

Later, in the apprehensive gaze of the poplar, Tie Niu also followed the example of the poplar, with the tension of his arms and legs, he supported the walls on both sides, slowly moved through the straight passage, and jumped down to the poplar.

Although his strength is greater than that of Poplar, his weight is higher than that of Poplar, not to mention that the flexibility of his body is not as good as that of Poplar, so he also feels that his arms and legs are all sore and painful, so he can only raise his arms and shake his legs like Poplar to relieve himself a little.

Seeing that Poplar had been observing the arc-shaped passage in front of him, Tie Niu also glanced up and down, and said, "There don't seem to be any holes on this top, I don't know if there are other mechanisms!"

Poplar shook his head and said, "I can't see it for the time being, let's try it with a javelin!"

He reached out and picked up the javelin on the ground, and knocked on the ground, but he didn't see any movement for a long time, and then he said to Tie Niu: "I can't be sure what kind of mechanism will be in this passage now, but there will definitely be a mechanism, so I'll go first, you wait behind!"

"But this is an arc passage, and when you get to the end first, I'm afraid I won't be able to throw the air canister and explosives bag at you!" Iron Bull said.

Poplar thought about it, so he put the air canister back on his back, and when he was about to bring the explosives bag, Tie Niu said: "I'll take the explosives bag, after all, it will be more dangerous for you to walk in front!"

Thinking that he was right, Poplar did not argue with him, but walked cautiously with a javelin in hand.

After walking a short distance, Poplar noticed that the width of the passage seemed to be slowly increasing, and the ground was also a little upward.

And the further you go, the slope of the ground gradually increases.

Poplar immediately realized that this must have something to do with the next mechanism, so he naturally walked more cautiously.

After walking more than ten meters, the slope of the ground has exceeded 30 degrees, and the width of the passage has exceeded one meter.

Poplar was thinking about what kind of mechanism it would be in front of him, but he heard Tie Niu shouting from behind: "I won't be able to see you soon, if it's okay, I'll follow!"

"Then follow along, but don't follow too closely! the passage gets wider and wider, and the ground gets steeper and steeper, and there is a very dangerous mechanism 100 percent ahead!" replied Poplar.

Iron Bull agreed, and followed.

After walking forward five or six meters away, the width of the passage was already more than one and a half meters, and I heard Tie Niu ask behind him: "Lao Bai, this passage is getting wider and wider, what kind of mechanism do you think it will be?"

Poplar looked back, only to see that the Iron Bull was less than three meters away from him, and he was busy telling the Iron Bull not to follow so closely, and a rumbling sound came into his ears, as if something was quickly rolling along the passage.

Poplar hurriedly shouted: "There should be a big guy rolling over, old black be careful!"

Before he could finish his shout, he saw a huge stone ball in front of him, rolling down the passage.

The diameter of the stone ball was more than a meter, but to the Poplar Iron Ox, this stone ball was just a fierce look, and it was not a threat to the two of them.

It's just that the top of the passage is only two meters high, and if the poplar jumps straight up, it will inevitably hit the top.

He could only wait until the stone ball rolled under his feet, and then he pounced forward with both feet, fell from above the stone ball, and landed a tumbling on the ground, and then stood firmly.

Hurriedly looking back, he saw that Tie Niu first threw the explosive bag from the top of the stone ball, and then jumped up and threw forward, and then dodged the stone ball and rolled to the ground.

The stone ball rumbled and rolled for a while, and then there was a loud "bang", and it must have been stuck between the narrowing wall in front of it.

Poplar hurriedly ran back, pulled the iron bull up from the ground, and asked, "How are you, old black?"

"It's okay!" Tie Niu smiled, "How can such a small stone ball hurt me!"

The stone ball is by no means small in the eyes of ordinary people, but the two of them are far beyond ordinary people in terms of strength and agility, so they can easily fall from above the stone ball, but if they change to others, they are afraid that they will be crushed into meatloaf by this stone ball.

Poplar nodded and said, "Since this stone ball has rolled over, there should be no mechanism ahead!"

He said this, but he didn't dare to relax his vigilance, but held the javelin in his hand, still full of vigilance and walked forward slowly.

The width of the passage did not increase further along, but the slope became steeper, which was naturally set to make the stone ball roll more violently.

After walking forward for more than ten meters, I saw three forks in front of me—

At first glance, there are three forks, but if you look closely, you will find that there are only two forks on the left and right, and the black whirring hole in the middle is just a small round and shallow cave, and it is estimated that the stone ball that has just rolled down is stored in this stone cave.

"There are two more forks in the road, which way shall we go?" Iron Bull asked.

Poplar is also difficult to judge, so he can only probe into the two passages to take a closer look.

However, it was found that on the left was a downward channel, which also showed an arc shape.

On the right, there is a straight passage, which is about ten meters long, and there seems to be a large space at the end.

But it is the passage of more than ten meters, which is actually full of sharp black thorns, and it is densely packed with no place to stay.

"Do you think we should go that way?" asked Poplar rhetorically.

"If you want me to say, go to the right, because the right side is at least a visible danger!" replied Iron Bull.

"But there should be a large space on the right side, and there must be something more dangerous hidden in it!" said Poplar.

"Then you mean to go to the left?" Iron Bull asked.

Poplar thought about it carefully, and finally shook his head and said, "Let's go to the right! As you said, the danger on the right is at least visible, but the left is ...... I don't know what is hidden, but it makes people's hearts even more bottomless!"

Tie Niu immediately nodded in agreement, and then asked, "Then how are we going to cross the ten meters of spiky road?"

"That's too much effort, I don't even have the strength to do that!" said Poplar, though it was a slight exaggeration, but his legs and feet were still sore.

"Then how shall we go?" Iron Bull asked again.

Instead of answering immediately, Poplar picked up his javelin and poked hard at the ground between the black thorns.

After waiting for a while, nothing unusual happened, and then he said: "There should be no other mechanisms on the ground between these black thorns, let's just use two javelins to walk over the ground!"

"Is this going to work?" Iron Bull couldn't help but scratch his scalp, "It's like playing acrobatics, I think it's better to move slowly with your hands and feet against the wall like before!"

"How can it be like playing acrobatics? Let's hold the javelin with both hands, but we can kick the wall with both feet to stabilize our bodies, or I'll go first, and then you can see how I go!"

Tie Niu has not systematically practiced martial arts, and his physical stability is far inferior to Baiyang, so he didn't say more, and directly handed the javelin in his hand to Baiyang.

(See Chapter 359 "The Hanging Female Corpse")