Yang Jing tried to pinch the protruding rock wall with three fingers, and then pulled it out. Sure enough, the protrusion could be pulled, and the force used was much greater than when he pressed the protrusion just now.

After the bulge was pulled up about 20 centimeters, it could not be pulled any further. Then there was another sound of the mechanism ringing.

Yang Jing had a clue now, and continued to move forward twelve steps, and began to search the ground. Finally, there was nothing on the ground, so he tried to stomp the bulge under his feet with his foot. As a result, after this step, the bulge actually sank a section.

This discovery made Yang Jing happy for a moment, and then he stomped his feet down, making the bulge level with the ground.

When the protrusion that had been used as a stepping point was stepped down, a louder mechanical sound rang out. This sound was louder than any previous mechanical sound, and it echoed in this narrow cave, making Yang Jing involuntarily tense up.

However, there was no boulders falling as imagined. With the help of the light, Yang Jing could clearly see that at the end of the cave not far ahead, a huge round object was blocked by a raised stone slab.

Yang Jing moved closer to the huge round rock and looked at it carefully before he figured out what the mechanism of this section of the cave was.

Obviously, this section of the cave is guarded by nothing else but this huge round boulder.

The first three operations were to raise the baffle. If you didn't follow the instructions on the stone tablet and perform them three times, the stone slab would definitely not rise. Then, once you take even one step forward, the round boulder with a diameter of one and a half meters would rush down from above unhindered.

This place is about 16 or 17 meters away from the bottom of this section of the cave. Even if you turn around and run back, you may not be able to escape the crushing of this huge rock. The slope of this section of the cave is nearly 40 degrees. Once such a big rock rolls down, the speed is definitely not something a human can outrun!

To be honest, the traps in this section of the cave are far less sophisticated than those in the previous two sections. But the traps in this section of the cave are full of violence!

Nothing else, just violent crushing! Using this three and a half ton stone to crush anyone who doesn't follow the instructions!

As the saying goes, "A heavy sword has no edge, and great skill is not skillful." With this stone, if you can't understand the instructions on the stone tablet outside, I'm afraid no one will be able to pass through this section of the cave.

At this point, Yang Jing was almost certain that the mechanisms in this entire cave were definitely not built by Yue Chengzi himself. When this guy built these mechanisms and traps, he either abused his power for personal gain, or he used other methods to move Li Congke, and then used the power of the royal family to build them.

Apart from anything else, this three-and-a-half-ton boulder alone is not something that Yue Chengzi can move by himself.

Yang Jing didn't believe that Yue Chengzi could be stronger than him. He had the skill of feeding back and plenty of precious energy in his body to provide energy, but even so, he didn't care to try to push this round stone that weighed at least three and a half tons.

After this section of the cave, there is a cave in front of us that is almost as spacious as the first section of the cave. However, this section of the cave is not very long, only about 15 or 16 meters, and the ground is similar to the ground of the first section of the cave, with many protrusions.

Obviously, the mechanism in this section of the cave must be controlled by footsteps.

This level is a row of arrows. Although I don't know what a row of arrows is, it must be something good. It can definitely kill people. Yang Jing has no doubt about this. In the three caves in front, Yang Jing already knew that Yue Chengzi would do anything to protect the imperial seal, and he had no bottom line at all.

However, the first three sections of the cave also made Yang Jing completely understand that as long as he followed the instructions on the stone tablet, there would be no danger.

"Four in front, one in back, two on the left, three in front, one in back, three on the right, five in front, one on the left, seven in front again, cross the row of arrows."

This was not difficult for Yang Jing, as he already knew how to pass this level, so he walked to the end of this cave very easily, and his idea of ​​seeing what the so-called "row of arrows" was was also dashed...

PS: I would like to thank "Smoking Bear" for the reward of 200.