Yu Qian's knife was very fast, and it was not much better than the divine weapons described in martial arts, so the section left when he cut off Tan Brown's left foot was extremely smooth, and the silver ring had left Tan Brown's body before a large amount of blood spurted out of this smooth section, and was held in the air by an invisible force and flew out of the sterile room.

The silver ring, which had not been stained with blood, floated in front of Yu Qian and Yang Xiaoqian, reflecting under the light.

But there was something on the silver ring that was more eye-catching than the light, so that the two of them couldn't take their eyes off it at first sight.

On the inside of the silver ring, that is, on the ring that was previously close to Tan Brown's skin, there were dense lines and imprints, and the runes were scattered in a complex pattern formed by these lines and imprints, like stars dotting the night.

With the extraordinary memory he had cultivated in the past six months, Yang Xiaoqian tried hard to recall the rune materials he had carefully reviewed, and found that a few of them overlapped with the incomplete information in Yu Qian's hand.

"This ......"

Yu Qian couldn't hide his shock, and unexpected emotions gushed out from the bottom of his heart and poured out on his face.

Others, including Ms. Yang, were equally surprised, and despite the assumptions they had made in advance, the windfall came so suddenly.

The silver ring worn on Tan Brown's ankle turned out to be a rune device, a special rune device that engraved runes on the inside.

This way of engraving runes is not new, it has been thought of for a long time.

When the Far Rescue Association first began to share rune technology with the former finger of the corpse, Liu Yuanzhou set up a special working group in Yuanjiang and devoted a lot of resources to research, analyze and try to apply rune technology. A group of experts led by Dai Xin, a professor of semiotics, worked day and night to experiment in shifts, and successfully experimented with a new type of rune instrument through a stupid method similar to exhaustive methods: rune daggers.

In the process of developing the rune dagger, someone once put forward the idea that since warriors wearing rune bracelets often leave marks on rune bracelets due to combat or unintentional collisions, resulting in damage to rune bracelets (once there are superfluous marks or cracks in a rune or pattern, the rune bracelet cannot function and must be reprocessed), why not engrave the rune on the inside of the bracelet? This way, even if the rune bracelet worn on the wrist collides with other items, the runes on the bracelet will not be easily damaged.

It is not uncommon to accidentally break the rune bracelet by bumping into it, for the Far Rescue Association and the corpse hunters, they only need to pay an expensive repair cost, and they can quickly get a brand new rune bracelet, but for the 258 Brigade without Yu Qian, the repair of the rune bracelet is as difficult as the sky, and the cost is almost as fast as the reconstruction.

During the war against the corpses, which must compete for all resources, any unnecessary waste is not allowed, whether it is material resources or manpower, in order to save the consumption of rune bracelet repair work, someone proposed the idea of transforming the rune bracelet, and the rune inscription on the inside of the bracelet was the first transformation concept to be proposed, but this proposal was quickly swept into the garbage.

The reason is very simple, the rune bracelet needs to be filled with the brain core to function, when the energy stored in the brain core is exhausted, the brain core will automatically fragment and fall off, at this time, the new brain core needs to be embedded into the groove of the bracelet, just like the revolver has emptied the magazine, and it needs to be reloaded one by one, and the rune bracelet also needs to constantly replace the energy core in order to continue to function.

The rune is engraved on the inside of the bracelet, so the groove that inlays the brain core must also remain on the inside of the bracelet, which means that whenever the energy of the bracelet's own brain core is exhausted, the wearer must take the bracelet off with great effort, and then inlay the brain core, and then put the bracelet back on, even if the skills are skillful and the fingers are flexible, it will take at least ten seconds to complete this set of actions - obviously, doing this on the battlefield is equivalent to death.

In contrast, the design of inscribed runes on the outside and the ability to replace the brain nucleus at any time when needed is more flexible and convenient. Of course, the original design has a big drawback that cannot be avoided, that is, it is very easy to be damaged, so the person who proposed the replacement plan came up with another new method: the rune is engraved on the inside of the bracelet, each warrior is issued with three or more rune bracelets, fill the brain core in advance, and when the rune bracelet is no longer effective, it will be replaced immediately, and the spare rune bracelet will be worn, which can greatly reduce the damage rate of the rune bracelet, and improve the combat efficiency of the warriors.

But this idea still failed to be recognized, the problem lies in the insufficient manufacturing of rune bracelets, the silver itself is not difficult to find, it is difficult to find professional rune carvers, with the production efficiency of rune bracelets in Yuanjiang at that time, it is a daydream to do a rune bracelet for the soldiers and corpse hunters on the corpse battlefield

If enough rune bracelets can be produced, it is a worthwhile idea to try, because there will be no pressure on the logistics side, and the most important thing on the corpse battlefield is the brain core, which is a logistics problem that does not need to be solved, all brain cores can be completely taken from local materials, and only a good rune bracelet is needed to ensure a steady supply of energy.

Unfortunately, there were not so many ifs in reality, and two promising ideas were swept into the garbage heap, covered with dust and no one cared about, until today it turns out that the visionary researcher had put forward a correct idea, but at that time due to the "limitations of history", no one could recognize it.

"This is rune technology." Yang Xiaoqian exhaled a sullen breath, and the appearance of the rune appliance swept away the depression in his chest, and he was in a good mood, "Or, rune technology." ”

"This proves that the world that Tan Brown comes from is likely to have a certain scale of human civilization, and it is different from our scientific and technological system! It is likely that the humans of that world have relied on the mysterious runes to take a completely different path of development from ours. Qi Xinwu was also overjoyed, and was about to report the matter to Director Liu, but after thinking about it, Director Liu must have already known about it, but he knew that they would find out the mystery, so he didn't open his mouth to break it.

Turning his eyes left and right, seeing faces with surprised expressions, Qi Xinwu guessed in his heart: "I just don't know if Liu Ju is too lazy to waste his tongue, or if he wants to keep some surprise for us?" ”

Next to Yang Xiaoqian, Yu Qian was still standing, his mouth open for a long time, and he asked puzzledly: "Why can it work without inlaid brain nuclei?" ”

"Haha." Yang Xiaoqian laughed loudly and asked rhetorically, "Why does it have to be embedded with a brain nucleus to play a role?" ”