I only saw that on the left and right sides of the passage, there were two ordinary yellow mud walls that normally looked like. However, when viewed through perspective, Xiangdongliu found that the two super-large mechanisms hidden behind the yellow mud wall were actually two super-large machines.

It is as dense as an assembly line for producing sharp arrows. Each sharp arrow is ordered by the mechanism, pointing to the channel from afar, waiting in turn for launch.

As for the trigger switch, it is placed at the bottom of the channel. As long as someone accidentally step on the trigger mechanism, the sharp arrows on the left and right sides will quickly break through the wall, and people will pierce the hearts of arrows in the future.

"Who designed this? It's so awesome."

Xiang Dongliu murmured at the dense mechanism behind the yellow mud wall in disbelief, thinking that this level of complexity would definitely be an amazing invention even in modern times.

This mechanism uses purely lever and bow-pull physical methods. As long as someone step on the trigger switch, it is equivalent to using the lever principle to easily pull the sharp arrow bow string that requires a lot of effort to pull, and then let the sharp arrow shoot out.

To put it bluntly, it means pulling a bow and shooting yourself, which is equivalent to committing suicide, but the person who committed suicide does not know.

"Fortunately, my brother has a perspective mirror, otherwise he would know if he would step on the trigger switch."

Xiang Dongliu looked at the map and saw that there was no mark on it and was shocked. He thought to himself how the elites of the Huaxia Xuanyuan League passed through this dangerous passage that was more than 50 meters long. I guess he had paid a considerable price.

After the thought flashed, Xiang Dongliu's eyes suddenly became sharp. He immediately searched for the pile of bones at the bottom of the channel under the night vision and perspective functions of the perspective mirror.

As expected, Xiangdongliu only took less than a minute to see two military necklaces with faint silver light, one at two o'clock and the other at ten o'clock.

However, what made Xiang Dongliu a little scared was that the one at the two o'clock direction was easier to get, while the one at the ten o'clock direction was relatively troublesome.

On the surface, the military card necklace at the direction of ten o'clock is no different from the two o'clock direction. However, from perspective, Xiangdongliu found that the military card at the direction of ten o'clock is actually in a dangerous area, with a trigger mechanism hidden underneath, which will be triggered if you are not careful.

Seeing this, Xiang Dongliu couldn't help but stand in place and smoke two cigars in a row, then looked at the soles of his feet with a perspective mirror and walked step by step to the army necklace at two o'clock. Shi'er stopped his pace and crossed half a meter, and bypassed the hidden trigger mechanism under his feet very accurately.

After arriving at the position, Xiang Dongliu carefully picked up the military necklace at the direction of two o'clock, took it in his hand and hung it on his neck, and then placed his eyes on the military necklace at ten o'clock.

"If I reach out to get it, I don't know if it will touch the mechanism."

Xiang Dongliu looked carefully at the switch at the bottom of the military necklace, and secretly measured it for a while. Finally, he mustered up the courage to walk over, squatted down and carefully stretched over with his blood dragon teeth.

Due to nervousness, Xiang Dongliu picked up halfway through the first time, so he let the military necklace slide back, which scared him so much that he was afraid that the small necklace would touch the switch if it fell to the ground.

However, what made Xiangdongliu suddenly loosen the necklace fall at this time was still small, and the mechanism was arranged for a long time, so it was inevitable that it would rust a little, so it did not touch the mechanism.

After understanding this situation, Xiang Dongliu decisively took back the blood dragon teeth, and with a very bold finger, he put the second military necklace into his palm, wiped the dried blood and hung it around his neck.

"The second one has been obtained."

Xiang Dongliu muttered secretly, got up, bite the cigar, looked further ahead, and found a military necklace again.

However, this military necklace is located at twelve o'clock directly in front of it, and there is a trigger mechanism at the bottom of a large area around it, covering a distance of nearly four meters.

"The more dangerous the place, the more treasures there are, it seems that the direction of this passage is not wrong."

Xiang Dongliu took a deep breath, thinking that he couldn't reach the point now, and he couldn't step over. How can he get the third military necklace without triggering the mechanism?

After thinking for a while, Xiang Dongliu pulled out his blood dragon teeth again, placed them gently on the ground and gestured for a few times. After estimating the distance and measuring the strength, he swung his right hand suddenly.

"Swoosh."

The Blood Dragon Teeth slid against the ground in response, and then pushed the military necklace out like a bulldozer to the area covered by the trigger mechanism, and slid it into a safe position with the military necklace.

Seeing that the impact method took effect, Xiangdongliu naturally activated the magic shadow boots in time. He slightly lit his feet and jumped directly through this dangerous area of ​​nearly four meters, and landed next to the Blood Dragon Teeth and the Military Necklace.

Immediately afterwards, Xiang Dongliu bent down and picked up the Blood Dragon Teeth and the third military necklace. He hung the necklace with a happier smile on his neck, looking through it all the way, dodging the trigger area of ​​the mechanism step by step.

It took a full five or six minutes to go eastward to walk this passage that was less than 100 meters long but very dangerous.

If it were said that without the help of the perspective mirror, Xiang Dongliu would probably be difficult to pass this passage, and without the Magic Shadow Boots, it would be difficult for him to get the third military necklace.

Therefore, after understanding the wonderfulness of the perspective mirror and the magic shadow boots, Xiang Dongliu smiled more happily, and soon stood at the end of the passage and tasted a few cigars leisurely before regaining his mood and going deep into the underground tomb.

Not long after, Xiangliu came to a room of more than ten square meters. At the same time, he also found a V-shaped staircase in the room, which was used to go down the stairs and enter the room, and go up the stairs and leave the room from the other end.

The stairs are made of blue bricks. Because they have been too long, they still feel a little swaying and loose when they step on them, so they let him walk very carefully.

At the same time, while walking, he also looked at the front, left and right with a perspective mirror, and the situation above. He carefully inspected the danger before he was willing to take steps.

However, there is a saying that people do not do as good as God, and plans cannot keep up with changes.

Although Xiang Dongliu was very cautious, he still turned left to reach the next room with a V-shaped staircase. I don’t know what mechanism was triggered or what happened, but I suddenly heard a dull roar, and at the end of the staircase that was slanted upward in front, a lion suddenly attacked.

However, this lion is carved from stone, with a huge body, exquisite patterns and lifelike,

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Chapter completed!