Qingping took Li Yiheng back to his residence, Li Yiheng took out the drawings in the drawer, and explained to Qingping again, explaining the principle of the white catapult device, which requires a tough string rope and an accurate catapult table as a benchmark to quickly and powerfully launch all the wooden arrows, it doesn't matter whether the crossbow itself is iron or not, as long as the design is reasonable, the wooden crossbow can also achieve the same power, but now the problem is how to find enough and tough strings. Pen, fun, and www.biquge.info

Qingping paced back and forth in the house, thinking about what materials in the city could be made into tough strings, and suddenly a thought flashed through his mind - thorn strips, he had climbed on the thorn net to play when he was a child, and secretly took out his father's saber and prepared to cut a thorn strip as a trophy, but cut to the middle of the thorn strip but couldn't cut it constantly, so he had to give up, now that he thinks about it, it may be that his strength was too small back then, but it can also prove that the inner core of the thorn strip seems to be used as a string rope on the crossbow.

Qingping told Li Yiheng his thoughts, and Li Yiheng was pleasantly surprised: "Why didn't you say it earlier, just do it." ”

The two of them immediately set off and came to the nearby thorn net, which was still the place where Li Yiheng had drilled into when he came in from outside, and now there were many corpses of He Luo Niu on it, which looked particularly gloomy.

Li Yiheng was about to make a move, but Qingping grabbed Li Yiheng and said, "Wait a minute, it seems that something is wrong." ”

"What's wrong, isn't it just a plant, and it will eat us?" Li Yiheng said disdainfully.

Qingping looked at the corpse of a He Luo Niu nailed to the thorns, and said: "This thorn strip seems to be quiet, but once triggered, the attack power is extremely strong, and now the thorn strip is stained with the blood of He Luo Niu, it may be triggered and become extremely irritable, and it will attack anyone who approaches it at that time, not to mention that we will also cut his inner core." ”

Hearing Qingping say this, Li Yiheng was a little vague, he had never heard that plants could also be provoked, he had only read from the tree that there was a kind of man-eating tree that would eat any creature that approached its branches, and he didn't know that this thorn was also equally aggressive.

"You've only heard about it, and you haven't actually seen it, have you? So you can't guarantee that these thorn strips that have absorbed the blood of Heluo Niu will not erupt, but this is a good opportunity, your crossbow machine is about to be successfully tested, you can't give up, right? So, my idea is that for what I heard, half credible and half unbelievable, compared to the two, it is still worth the risk. Li Yiheng persuaded Qingping seriously.

Finally, Qingping was shaken, it took him a lot of effort to develop a crossbow machine, and now success is just around the corner, he doesn't want to give up just like that, if he really encounters danger, there are Li Yiheng and Xiao Ji here to help him.

"Okay, that's it, how do you know if it works if you don't try. Qingping gritted his teeth and decided to act.

Li Yiheng unfolded the umbrella blade, observed it carefully, and carefully cut down on a thinner thorn strip, as Qingping said, the sharp umbrella blade did not directly cut off the thorn strip as expected, but stuck in the center of the thorn strip, Li Yiheng pulled out the umbrella blade, and it was another time before the thorn strip was cut off, revealing the inner core.

The inner core of the thorn strip is as thick as a little finger and yellow, Li Yiheng tried to grab the inner core and swing it in four directions, and the inner core will return to its original shape, which looks very elastic.

Li Yiheng said to Qingping with satisfaction: "Very good, if you meet the conditions as a string, then let's take out one first, see how the effect is, and then gather some people to collect a large number of people." ”

Li Yiheng looked at the inner core of the thorn strip with joy, but Qingping was observing the thorn strip's reaction from beginning to end, for fear that those statements were true, and at the same time, he was also thinking about how to deal with the thorn strip if he was really irritable.

Qingping was overly nervous, sweat was already oozing from his head, Li Yiheng glanced at the beads of sweat on Qingping's head, and said, "What's wrong with you, so nervous?"

"Nothing, just a little overly worried. Qingping wiped the sweat off his head.

"Cut, don't be so nervous, haven't you heard of it, the soldiers will block, the water will cover the earth, there is really something that can't be solved", Li Yiheng looked at the thorn net, seemed to think of something, and asked Qingping: "You say, if we destroy the structure of the thorn net, wouldn't it bring convenience to Luo Niu's attack, you see, if we cut down a large area, there will be many large gaps, and these thorns of the thorn net will not work, what do you say?"

Qingping seemed to have figured it out a long time ago, and explained to Li Yiheng: "The thorn net is just a defense, and it can only block a small part of He Luo Niu, if we make a batch of crossbow machines as soon as possible, we will destroy all He Luo Niu, and the thorn net will be useless." ”

"I can't figure it out, this is the root cause of the problem. Li Yiheng patted his head, as if to blame himself for his sluggish reaction.

Just when Li Yiheng cut off nearly two meters of thorns and was about to pull out the inner core, the thorns seemed to be alive, suddenly twisted, Li Yiheng and Qingping immediately jumped away, the thorn strips really seemed to be conscious, rolled towards the three people, Qingping spread his wings and flew into the air with Li Yiheng.

Xiao Ji had already fled in front of them at this moment, and Li Yiheng scolded: "You really don't pay attention to righteousness, run away first." ”

As soon as the words fell, a thorn strip as thick as an adult's waist split into the air and drew towards Li Yiheng and the three of them, and the three of them dodged the blow, but the thorn strip cut off by Li Yiheng's hand fell into the darkness below.

Li Yiheng beckoned Xiao Ji: "Xiao Ji, hurry up and hold that thorn strip, let's draw attention to this root." ”

Xiao Ji turned his direction and rushed towards the falling thorn strip, Qingping took Li Yiheng in the air and swirled with the tentacle-like thorn strip, the thorn strip attacked several times without effect, and suddenly swelled up, and the thorns on the surface shot towards Qingping and Li Yiheng like bullets.

Qingping accelerated to escape, but he couldn't compare to the speed of the thorn jet, and he was about to be shot into a hedgehog, Li Yiheng hurriedly unfolded the umbrella shield, covering the two of them, blocking the attack of the thorns, and the thorns shot on the umbrella shield with a "ding, ding" sound, and the two people who hit them retreated.

"It seems you're right, these thorns are really irritable. Li Yiheng said to Qingping while holding the umbrella shield.

Qingping was also in a panic at the moment, and he didn't know what to do, so he said to Li Yiheng: "Let's fly back quickly, and try to hide out of the range of the thorn strip attack." ”

After speaking, Qingping took Li Yiheng to fly back quickly, Li Yiheng gave Qingping a sentry and informed the direction of the thorn strip attack, Qingping cleverly dodged the thorn strip from Li Yiheng's words only.

However, they underestimated the ability of the thorn strips, and at this moment, more, thicker, and longer thorn strips unfolded from their original entanglement state, forming a huge net, blocking Li Yiheng's path from below, and then these thorns on the net shot out again, more dense than last time.

Li Yiheng hurriedly opened the umbrella shield, blocked it below, and hit the umbrella shield like a bullet, and the force generated also made Li Yiheng and the others have to fight to resist.

After that, the sound disappeared, Li Yiheng moved away from the umbrella shield, and the thorn strips were thrown from below, Li Yiheng hurriedly hid behind the umbrella shield again, and the thorn strips were thrown on the umbrella shield stiffly, and the power was so great that Li Yiheng and Qing Pingzhen flew out, and the two of them rushed into the air like a fire.

Qingping hugged Li Yiheng tightly, trying to stabilize his body, but the strong inertia made Qingping's wings unable to spread well, the two flew all the way up, and finally saw a huge rattan protective net in front of them, which was full of spikes, but not thorns, but wooden thorns that were artificially fixed, Qingping shouted close to Li Yiheng's ear: "What should I do now, just wait for the meat skewers to hit it." ”

Li Yiheng's ears resounded with the sound of "flickering" wind, mixed with Qingping's words, and it became intermittent when it reached Li Yiheng's ears.

Li Yiheng also saw the wooden thorns in the sky, twisted in the air, ran to the top of Qingping, unfolded the umbrella shield again, covered the two of them, and crashed into the protective net.

Qingping shouted: "After crossing the protective net, you will reach the border of the Huo people, which is more dangerous there." ”

Li Yiheng shouted back: "Do you have a better way?"

Qingping hugged Li Yiheng tightly, thinking: After Longtan and came to the tiger's den, I am really lucky, no matter what, I want to see what the Huo people are like.

The umbrella shield effectively blocked the wooden thorns on the protective net, breaking through the protective net, and the speed slowed down, and Qingping was able to incite his wings to hold Li Yiheng to stabilize his body.

The Huo soldiers who were on guard on the houses near the protective net heard the sound of the protective net breaking, and immediately rushed to check, saw the Qing wings of Qingping, realized that it was the invasion of the Qing people, blew the wooden horn, and asked for help from the nearest garrison.

Xiao Ji grabbed the fallen thorn strip, turned around and disappeared Li Yiheng's trace, at this time Xiao Ji has come to the deeper part of the tree trunk, the surroundings are dim, an inexplicable fear hit, Xiao Ji hurriedly flew to the sky, when he was about to the ground, he saw a little girl sitting on a branch, Xiao Ji recognized at a glance that it was the little girl that Li Yiheng rescued from Luo Niu's mouth before, and flew in the direction of the little girl.

The girl was wearing a yellow jumper at the moment, and when she saw Xiao Ji approaching her, she smiled slightly, and disappeared into the branches in the depths.

Xiao Ji thought that he was dazzled, blinked vigorously, and saw the girl's figure, and wondered in his heart: It's hard for Lao Tzu to fall in love with her at first sight, and he hallucinates?

The tentacle-like thorn strip has returned to its original position, it seems that it has stopped, and there is no aggression, Xiao Ji put the thorn strip on the branch to rest, looked into the air, and could only vaguely see the shadow of the protective net, and turned around in the air uneasily, and there was nothing to do, so he picked up the thorn strip again and flew towards Qingping's house.

A young boy from the Qing nationality on the ground looked at the little boy in the air, took his mother's hand and said, "Mom, look, that little bird has caught such a long worm." ”

The mother looked in the direction of the boy's finger, and then taught the boy: "Don't talk nonsense, it is our savior, you have to remember." ”

The boy still couldn't understand the meaning of the savior, and looked at Xiao Ji blankly, but he thought it was funny.