In the following time, Fang Yu locked himself in the house to study the self-detonation goblin.

He placed the explosive crystals he had bought from Parker on the table - ten in all, two hundred and forty lissell each, and yes, the Paparals never suffered. It was the first time for Fang Yu to take a closer look at this crystal, and he found that the internal structure of the crystal was extremely exquisite.

In order to reduce resistance, the crystal was designed in the shape of a triangular pyramid, and the transparent interior was covered with a swaggering and twisting silver gray pattern, which those who did not know would only think that it was mysterious and beautiful, but Fang Plover recognized it as just three alchemical formulas overlapping each other.

He sat on the edge of the bed, pulled down the goggles and put them on his right eye, adjusted the light of the wind lamp, closed his left eye, and pressed the magnified crystal lens with his hand, and the distance between the crystal and himself was narrowed in front of him.

Let its internal structure be revealed.

The Negative Hill walked slowly through the dark underground, the hut undulating rhythmically, the surface of the exploding crystal reflecting a lonely fire, sometimes rolling on the wooden tabletop. At this time, Fang Yu could only use his hands to protect the edge of the table to prevent them from falling to the ground.

However, exploding crystals are safe, and violent vibrations and impacts do not stimulate the abundant magic they contain. But they are fragile, and their openwork structure makes them so delicate that they can easily shatter and destroy the alchemical formulas within.

In fact, the alchemists of Aitalia knew how to use alchemical formulas at a very early age—mainly firing arrays and expanding configurations—to unleash the explosive magic contained in this crystal.

Humanity has been trying to find an alternative, but the Elector's research has not yet progressed, and alchemy seems to be the only viable option.

Fang Ou erected one of the crystals, and below the crystal of the triangular pyramid were three copper rings with a metallic luster, and the copper rings were divided into many sections, which were actually a time-delayed magic injection device. From bottom to top, there are Tariac, a quarter of an inch, and a second.

This is the way of keeping time in Aitalia, one Tariath tick is equal to about four minutes, and a quarter inch is the scale on the Taria's chronograph scale, which is roughly equivalent to more than ten seconds, and the second is the time on the earth, and it is also the change brought by humans.

The earthlings tried to promote unified measurements and weights in Aitaria as early as the Stargate Age, but this cultural difference was difficult to change, and in the end they had to compromise. Discovering that the Aitarian natives did not have a smaller unit of time, they introduced the second scale, which over the decades became the first choice for alchemists who wanted precision.

These three rings are actually the time-delay fuses of the exploding crystal, which need to be infused with the correct mana from the magic furnace by the Elector or the adventurer, and the miniature magic storage device inside the three copper rings will store the mana until a specific moment.

When the preset time of the adventure is reached, it will release its mana one level higher in turn - in short, if the adventurer does not set the tarriake, then the mana will go directly to the second brass ring, and if the adventurer does not set a quarter of an inch, then the mana will go directly to the top brass ring.

The brass ring had a total of twelve scales, just a quarter of an inch smaller, representing twelve seconds, and a delay of twelve seconds was actually enough for a crossbowman.

Parker actually has a batch of explosion crystals with only a copper ring and only a second timing delay fuse, which is much cheaper than this one with two less sets of components. However, Fang Yu thought that since he wanted to study this thing, he would still let the other party 'transfer' the only complete batch of versions to him.

He looked closely at the crystal in his hand.

Seriously, he can't use these crystals that Parker sold him, because they are naturally not made of attribute-free crystals, and detonating them requires the corresponding attribute mana, and Fang Yu can't take them out.

However, the magic power only affects the properties of the crystal, and its internal structure will not change, Fang Yu himself is also half a crystal craftsman, he does not need any additional expertise to create a batch of explosives β crystals, the firing array and expanding the configuration are very basic configurations, not to mention that he also has a more professional firing array bought from the owl lady of Elpakhin - much better than Parker's.

But the hard part is the brass ring fuse below.

It's not that he can't make them, but it takes a whole lot of expertise to use these explosive bolts, as they're too delicate to break if you're not careful. Or the way the fuse is used is wrong, for example, the way the craftsman injects magic is naturally very different from that of the nightingales, and the magic furnace used by the two is also inconsistent, and the wrong way often leads to the wrong result.

But he couldn't really learn all the skills related to the Nightingale, a series of explosive crossbow bolts in the direction of the crossbowman, not to mention that he couldn't show so much combat experience, and secondly, there was no need for it.

Combat craftsmen naturally have the methods of combat craftsmen.

Since arriving at Fenris, he has had several encounters with the night lizards, and has accumulated just enough experience to learn how to use the fuse of the Exploding Crystal.

For the rest of the mana injection part, priority is given to transforming the mana injection path of the explosion crystal. It was originally made for the Nightingale and Crossbow Archer and the Ranger, and the distribution of the mana path naturally favors the way the three classes are accustomed to the operation of their professional magic furnace.

But it's not immutable, after all, it's made by craftsmen.

However, Fang Yu did not learn the relevant knowledge, so he could only rely on himself, he first disassembled the fuse of one of the crystals, recorded the configuration, and tried to obtain the drawings. But I was a little unlucky, and I dismantled three pieces in a row to get an ordinary drawing, but this is still just the original drawing, and in order to improve it into a type of drawing that can be used by craftsmen, further changes are needed on the drawing.

What to do?

Of course, it is to continue to understand the structure and operation of the original drawing, and add your own ideas, the method is very simple, that is, continue to disassemble the structure, reassemble, and deepen the understanding. Fang Yu opened a progress bar on the drawing, and then began the work that seemed boring to others, but he himself had some relish.

With the original drawings, you can reassemble them back. Then I disassembled, disassembled, cycled, and disassembled, deepening my understanding and looking for ideas and inspiration in the process.

Fang Yuan's hand kept moving, while silently watching the blue progress bar in the Elector system grow slowly. There was a benchmark error value in this process, and his error value was actually very low under the powerful hand control skills, but at the end of the afternoon, he still destroyed ten explosion crystals.

There was only a pile of parts left on the table, and the progress bar was already above ninety percent.

Fang Yu breathed a long sigh of relief, the ninety percent success rate was enough for him. He swept it with his hand, sweeping all the scattered parts into a wooden box next to the table, these damaged parts he could not use, and he could not return to the furnace, but he could sell them to the craftsman's association, and the funds could be recovered a little bit.

Fang Yu found that he was becoming more and more similar to Miss Scarpet, and couldn't help but touch his head a little embarrassed.

He didn't plan to deduce the drawings in one go, it was enough to leave an inspiration in his head. Now that he was feeling a little tired, it was obviously not a wise choice to deduce the drawings without mental concentration.

He rubbed his tight forehead with his hand, intending to go out to get some air and wait until later to continue the work.

Of course, in all seriousness, he actually has a sense of urgency.

After Lonely White Wild had said that to him before, he carefully estimated the candidates in the team who could participate in the trial: First of all, it was naturally impossible for Shesta and Red to participate, far exceeding the level limit of the trial.

And Sylvid's level seems to be just at level fifteen, so she shouldn't be able to participate.

Miss Atila's combat class has improved a bit after the first battle of Dorifin, and she is in the early tenths, but she also has a life class level that is not low, and the character level is naturally more than fifteen when you count it together.

Sky Blue, Ji Ta, and Luo Yu are trainees, and they can only participate in the trials of trainees, not the official trials, so there is no point. Fang Yu planned to communicate with them to see if they were willing to participate in the trial or stay in the team, and solicit the willingness of a few people.

If they were willing to participate in the trainee trial, Fang Yu naturally didn't plan to stop them, they were safe anyway.

And in the end, Fang Yu looked at it, and it seemed that there were only two people, him and Parker. It's true that he's a combat craftsman, but he doesn't have many means at his disposal as a combat craftsman: two Walker III corpses, plus a pair of self-protective reinforced gloves, and the rest is a clockwork elf.

Parker's side is just a nightingale in the direction of a crossbow archer, not to mention that his melee ability is just as weak, and he also has a bunch of part-time life occupations, and his combat effectiveness is even lower. Although it was said that the trial did not have to be successful, and there was no risk of failure, Fang Yu didn't want to waste time, he had asked the twin sisters before, and Alyssa told him that there was no reward for failing the trial.

Even the experience gained in the process will be deducted.

Fang Yu naturally wanted to at least mix a low-income one, as for a higher goal, he didn't dare to hope for such a two-person group.

Therefore, he wanted to rush to make a batch of self-exploding goblins before participating in the trial, and add some hole cards to the next adventure. Luckily, there was more time than he had imagined, it didn't take much time to transform the clockwork elf, and the explosion crystal itself was easy to make - as long as there were materials.

And he still has a lot of materials on hand since Dorifin and his party, and the missing part can also be purchased by the rainspeaker, and I believe that the other party will definitely give him a preferential price. Therefore, it seems that the derivation of drawings does not need to be rushed at this time.

In fact, more than half of the knowledge and skills related to the explosive crossbow are focused on the operation of the fuse and crystal, and after these two points are solved, the remaining half is almost all about the skill of the crossbow shooting itself.

However, Fang Yu didn't plan to put the explosion crystal on the crossbow arrow, so the remaining half of the experience could be said to be saved.

……