Zhang Ping slowly opened his eyes, and after several hours of meditation, his state reached its peak again.

However, as soon as I opened my eyes, I saw that the demon clan and the demon beasts were busy carrying stones and yellow sand, and the sand and stones with a height of half a meter had been piled up in front of the barrier.

"It's ...... What's wrong? ”

Liu Shaobing's face was not good-looking, and his tone trembled a little: "You want to bury us alive." ”

Zhang Ping was silent. After a while, he asked, "I see." How many bullets and grenades are there now? ”

Bao Jiarong's tone was very solemn: "The bullets are running out." There are 7 more grenades. ”

Everyone's eyes were on Zhang Ping. Judging from the current situation, the vitality is completely on Zhang Ping.

Zhang Ping took a deep breath and turned his head to look at Chu Yiyi: "Yiyi, I remember that you used vine spells to form a longbow before, how about refining a longbow for you?" ”

Chu Yiyi thought for a while and nodded: "I have practiced bows and arrows in the martial arts hall, and in a stationary state, I can shoot at a distance of 80 meters; 60 meters can hit the bull's-eye. ”

Chu Yiyi lacked the means to fight. Its main means of attack is vines; However, in the current environment, even if you can use spells, the effect is very poor and very expensive.

Using a bow and arrow is a good option. Chu Yiyi lacked the spell to attack, but the foundation of the fifth layer of qi refining was not trivial.

Zhang Ping's eyes swept over the materials in front of him: the whiteboard equipment brought by the school, the weapons captured from the demon clan (also whiteboard equipment), and the guns without bullets.

Guns can be dismantled from a lot of excellent alloy materials. Everyone's guns add up, and there are a lot of metal parts, which can be added to the rest of the metal as 'additives' to improve the performance.

Then Zhang Ping's gaze swept over the corpse of the demon beast. Most of the monsters captured by everyone are tigers, wolves, bears and leopards. Because there is not much time, the main thing that everyone dragged back was the large demon beasts.

As for the bird type, there is no such thing at all.

To build a longbow, you need a bowstring. The rope you wear on your body will not work.

Ordinary alloy steel can withstand the refining of real fire. The ropes of these ordinary polymer materials will become fly ash as soon as the real fire burns.

Zhang Ping suddenly remembered a picture in his mind: when he first met Gu Qingyan, Teacher Gu used his own hair as a material.

However, Gu Qingyan is in the Jindan period, and his hair is not trivial. Zhang Ping looked at Chu Yiyi's long flowing hair—of course, it was coiled up now.

"What's wrong?" Chu Yiyi's heart was beating when Zhang Ping looked at her - she felt that something bad was about to happen.

Zhang Ping pondered for a while, "To refine a bow and arrow, you need a bowstring. ”

Chu Yiyi immediately understood, "You want to use my hair?" ”

"I'm going to give it a try."

Liu Shaobing immediately jumped up: "Isn't the nylon rope good?" ”

Zhang Ping didn't speak, grabbed a piece of nylon rope, and with a flash of fire in his hand, the rope turned into a little powder and fell.

Liu Shaobing: ......

Chu Yiyi untied a long hair, and the long hair like a waterfall swayed gently.

Zhang Ping was not polite, grabbed a handful of hair, and a flame flashed in his hand. However, I only saw my hair turn into ashes and spill it; Only fragmentary, intermittent filaments remain, which obviously cannot be used.

"Can't you?" Zhang Ping sighed, sure enough, the Qi Refining Realm still couldn't work.

"How about using animal tendons?" Bao Jiarong gave an opinion.

Immediately, a soldier quickly peeled a long tendon from the spine of a tiger demon.

Zhang Ping pinched his hands, and two fire snakes appeared, circling to wrap the beast's tendons, and flying ashes continued to fall; Zhang Ping controlled the temperature of the flame and slowly heated up; After a few breaths, a slender, smooth, crystal clear 'cow tendon' appeared.

"Feasible! It's amazing! Everyone's eyes lit up.

After a while, all the animal tendons were peeled off, and a total of more than 20 animal tendons of different lengths and thicknesses were condensed. The longest one is more than a meter long, and the short one is less than sixty centimeters.

However, a magical scene of refining appeared. Zhang Ping coiled all the animal tendons together; Under the true fire of the sun, these beast tendons actually melted, and impurities fell again. Finally, a long tendon about 1.2 meters long and only about 3 mm in diameter was pulled.

The long tendons are crystal clear. However, Zhang Ping frowned a little when he looked at Changten.

"What's wrong?" Chu Yiyi asked again.

"It's just the long tendons after the sun is really refined, and the strength and durability are not enough. It may not take a few times before it breaks. But this long tendon is too thin, and I can't bless the formation for the time being. ”

Chu Yiyi showed a faint smile: "It's broken, and you." You can re-refine and weld. ”

Bring your own logistics, what are you afraid of!

Zhang ping:......

yes, you're right.

Then there is the bow tire, and there are really not many materials that can be found at the moment.

"Is this okay?" Gao Huiping dragged out a 'rotten wood' from the side.

Zhang Ping looked at it, this wood seemed to be made of window lattices, and there were many holes on it. Shaking his head slightly, "Wood is different from metal. The wood must remain pristine and intact in texture. This wood can only be cut off to make daggers and so on. ”

Gao Huiping blinked, "No, I see that when you made the dagger, it was also melted and shaped." ”

Zhang Ping spread his hands, "Don't ask me, I don't understand the principle myself." All I can say is that this is the way it is, and I can't change anything. ”

"What about this one?" Liu Shaobing quietly took out a piece of wood from under his buttocks. The wood is not long, but it is thick.

"This one can be!" Zhang Ping was overjoyed, and then looked at Liu Shaobing: Okay, it's hidden enough.

Zhang Ping sat down with a piece of wood, looking at the demon clans and demon beasts who were busy like ants outside, but he was thinking in his heart: Longbow, what formation to use?

Zhang Ping is a smart child, and of course he asks everyone if he doesn't understand.

Everyone spoke:

"Add a power-based spell."

"Adds a precise type of spell with its own locking ability."

"The power of the arrows is a little worse after all. Sharp types of spells can be added. Longbows increase strength and arrows increase sharpness. ”

"Who said that the strength of the bow and arrow is not enough, even in the whiteboard equipment, the power of an excellent bow and arrow is comparable to that of an ordinary sniper rifle. I think I can add a variety of arrows, such as those that can cause stuns, etc. It can be used for hunting, rescuing people, etc. ”

"Did there explode? Otherwise, shock bombs and flashbangs will do. ”

"You have to be able to break defenses."

"Do you have the ability to send in groups?"

…

Everyone, you and I are talking a word, and it is becoming more and more lively.

Zhang Ping's fingers write and draw on the sand, gradually forming a complete design.

Limited to his current ability and the simplicity of the environment, Zhang Ping is ready to bless the longbow with two formations: stability and impact.

Stability and improved accuracy.

Impact, which itself increases the attack power of blunt weapons and heavy weapons, can increase the power of archery; But it needs to consume some True Qi to urge this formation.

Then there are the arrows. Arrows can be set up in different formations. Some increase sharpness and tearing effects, while others increase puncture, paralysis, or bleeding, phantom, or clone, or acceleration, or self-detonation, etc.

Zhang Ping did not fully grasp these military, weapon-specific spells that he had just obtained, but ...... It's time for Krypton!

Zhang Ping looked at the remaining five drops of merit, gritted his teeth, and used one again.

Two hours of overclocking, here!