Gemology, in the beginning, was a necessary category of knowledge for magicians and arcanists.

Of course, this refers to the knowledge of the Aborigines, and the player will not touch on these aspects of knowledge.

However, there is always a way to integrate these things into the player's life - such as life occupations, other essential knowledge, and system accessibility features that are unique to the player, so most of the time the player will be able to identify gems. It's not like NPCs, only people with corresponding identity and profession will have relevant knowledge.

Like Sean, his profession is originally a warrior system, so naturally he doesn't need to involve this kind of thing. However, his life profession is a blacksmith, and he is also an alchemist who can create demonic equipment, so Sean will have more or less dabbling in gemology and alchemy, but the upper limit of his knowledge is not as profound as that of magicians and arcanists.

However, at this moment, Sean could clearly distinguish that the four grooves with only powder in them should have the same crystals as the other two grooves. But it is likely that it was due to some reason in the battle just now or even more so that these crystals shattered, leaving only these powders. Sean blew lightly, and all the powder was already drifting away with the wind, choking like dust.

Sean waved his hand, sweeping away the dust before turning his gaze to the two remaining crystals.

The crystal above the pentagram magic array took on a gray dark color, giving people the feeling as if something had burned down. Only the other crystal inserted in the middle of the magic array showed a milky white luster, but at this time, this milky white luster looked a little dull. It feels like energy exhaustion.

These crystals, Sean could not identify their nature or scientific name. That's what he found strange.

The Mermaid Empire is not a country founded on magic and martial arts, but they are in many "sideways" academics such as alchemy, magic array, mechanism, and puppetry. But it has the ability to surpass the current era. Things like the steam science that goblins have made up today, the magic circles made by the guys who look at the spire, the puppet dolls that old pedants are studying in the lonely tower of the north, and the alchemy of the sky library are actually leftovers from the Mermaid Empire - but even so, their current achievements are not one-tenth of the Mermaid Empire's time.

Perhaps, under Sean's promotion, the advent of the teleportation magic array can be regarded as a big step towards the scientific research of the mermaid empire - only after the magic guide is officially launched, will the entire Miracle Continent enter a new round of scientific and technological revolution. But even if he enters the era of the magician, it is only to narrow the scientific research gap with the mermaid empire to one-fifth, and he wants to truly reach or even surpass the level of the mermaid empire. Before Sean came to this world, it had not yet appeared.

Therefore, Sean doesn't think that the special type of mechanism puppets made by those guys of the merfolk clan will be meaningless.

After trying it a little and confirming that the crystals were not in any danger, Sean reached out and took out the black crystal, and then opened the True Eye and swept it.

In the next second, Sean's face showed a look of shock.

[Infinite Gun (Damaged):――. 】

[Item Description: This is a very rare skill crystal.] After using the special means, you can reappear the skills sealed inside! Unfortunately, this skill crystal has obviously been completely destroyed, but if you don't mind, it can still be used as an obsidian decoration. 】

It's actually a skill crystal!

Without hesitation, Sean picked up another crystal that was a little darker in color.

No doubt. This is also a skill crystal, and it is also an undamaged skill crystal!

[Radiance Crystal Wall: Skill Crystal, Special. Mythology. Comes with the skill "Radiant Crystal Wall": You can unfold an absolute defense shield with a radius of three meters, and be immune to energy-emitting martial arts below the eighth level (including the eighth order) and elemental and arcane magic below the seventh level (including the seventh level). Equipment Restrictions: Armor; Core array. 】

[Item Description: This is a very rare skill crystal.] After using the special means, you can reappear the skills sealed inside! Note, however, that once it fails. The crystal will shatter and you won't have any chance of starting over. 】

Sean's face showed excitement.

The value of this thing is no longer below the Silver Punishment Spear, and even in a sense, it is far more than the Silver Punishment Spear!

Skill crystals are very rare special items in the game.

Although it does not allow the player to directly obtain skills, it can directly integrate skill crystals into equipment through guò forging, so that the equipment comes with the skills granted by the skill crystal. It's just that the skills of the skill crystals are different, and the restrictions on equipment are also different: like the skill crystal of the Infinity Gun before, it looks like a gun skill, so it can only be integrated into a gun weapon; And this Radiant Crystal Wall, as the signature skill of the Silver Radiance Holy Wall, can naturally only be integrated into armor-type equipment.

However, what Sean didn't understand was what this "core array" meant.

In the game, not to mention him, even the guild he was in didn't get skill crystals, so he didn't know anything about this kind of thing. At that time, there were only a few skill crystals in the entire game, but the highest level of them was only a rare quality, and it didn't even reach the legend. Now that Sean thinks about it, it should be the person who obtained the skill crystal in the game at that time to keep it a secret, at least in the hands of the team that got the "Divine Radiance", there should be this skill crystal of the "Radiance Crystal Wall".

As for why he didn't see this skill later, Sean guessed that it was nothing more than two situations.

One is that the forging and smelting failed, so the skill crystal was broken; The second is that the skill crystal has been kept and has not been used.

But in either case, it has nothing to do with Sean.

Now that he has such a skill crystal in his hand, he still feels pretty good. However, until he figured out what the "core array" meant, Sean didn't dare to use this skill crystal at will - of course, even if Sean wanted to integrate into the equipment, he didn't have any good equipment worth integrating into it.

"Look at how happy you're smiling, this thing looks like a good thing." Nolo didn't know what a skill crystal was, but he could tell the specifics of the harvest from Sean's face.

"Okay." Sean smiled and nodded, and after taking the skill crystal and playing with it, he received it in the storage space, "It's really a pretty good thing." ”

A weapon equipped with mythology, plus a very rare skill crystal, Sean got two mythical-quality things from this puppet, which made Sean start to feel that these puppets are not so annoying. At this time, Sean even began to expect that the next thing he would encounter would be a special type of puppet, so in this way, even if he didn't go to that secret vault and treasure house, he wouldn't feel anything unpleasant about this trip.

Anyway, among the treasure troves of the secret vault, the most valuable thing must be the mermaid holy crown, but no one can use this thing except for the mermaid clan.

Although Lancet is a mermaid, but this guy is not here for the mermaid crown, Sean really can't figure out what he is doing in this mermaid capital. But on the other hand, since Lancet didn't come for the Mermaid Holy Crown, then Sean felt that it didn't matter if he went to the vault and the treasure house, and now he began to want to find special mechanism puppets to fight, these are all world-class bosses of unique nature, and the drops are absolutely good to burst.

Moreover, among all the special mechanism puppets, No. 3 is the most difficult, No. 1 has the highest combat effectiveness, and No. 2 has the most special skills.

Thinking of this, Sean glanced at his taskbar.

When he first entered the Water Demon Vault, he received a total of four missions.

[Objective 1: Find the entrance to the Mermaid City]

[Objective 2: Enter the treasure room in the Merfolk Capital.] 】

[Objective 3: Obtain the Mermaid Sacred Crown without alarming the Guardian Heroic Spirit.] 】

[Objective 4: Reach 100% dungeon exploration]

Now mission goal one, he has accomplished. Objective 2 and Objective 3 indicate that they are in progress. As for mission objective four, he has completely explored the entire water demon vault, and the exploration degree has only reached 20%, so the remaining 80% must be in this mermaid capital, and the current display is that the exploration degree has reached 23%, if you want to completely complete the mission goal four, Sean still has to run to the secret vault and treasure house.

Although there is still a question mark on the task bar on the punishment for mission failure, Sean always feels that if he really fails the mission, he may cause some unnecessary trouble. So after some careful consideration, Sean decided to run all these tasks, as for the request of the Mermaid Holy Crown, Sean felt that he could complete it, and it was so-called if he couldn't complete it.

That guy who guards the Heroic Spirit is not easy to mess with at first glance, and Sean has no intention of fighting hard with this kind of guy who can protect the treasures of the clan.

"So what are we going to do next?" Nolo asked.

"Let's take a day off, there is time anyway." Sean shrugged, "When Oriana recovers, we'll get those two pieces of earth." ”

"Didn't you say you weren't in a hurry?" Nolo was stunned for a moment.

"We can even kill the Sacred Wall of Silver Radiance, and we still care about other puppets?" Sean gave Norlo a blank look, "With your and Harding's combat power, it won't be a problem to deal with these puppets, at most it will take a little time." …… But don't worry, I'll tell you how to deal with these puppets quickly. ”

"Okay." Hearing Sean say this, Nolo could only sigh helplessly, and then nodded resignedly. (To be continued......)