500 units of concentrated mercury is equivalent to 5,000 units of ordinary mercury, which is equivalent to ordinary large ships transporting 3 to 5 ships, piled on the dock like a mountain. Pen? Interesting? Pavilion wWw. ｂiquge。 infoNow what Serbia has to do is to volatilize this mountain-like existence!

At this moment, Da Fei couldn't imagine what kind of realm the intelligence and growth of the heroes of the epic plot could be improved, and Da Fei didn't expect that the concentrated mercury that was originally used as reserve fuel would be used in this place! But as long as you can wipe out the dragon's lair, this bit of mercury is worth it! All Da Fei can do is watch it excitedly.

At this time, on the shore of the lake in the central village of the Holy Vine, it was still the magic circle used to absorb the soul of the hydra, and Serbia was serious and tried his best to cast spells. At the same time, Tamilia opened several spatial doors in the Holy Vine cargo space, and hundreds of vine demon troops poured out entire barrels of mercury, and then the mercury was instantly carried away by the whirlwind surrounding the Sky Boat, and when the mercury whirlwind encountered a scorching dragon's breath heat wave, the mercury instantly boiled and turned into red steam and exploded and spread around!

Is it done? Da Fei clenched his fists excitedly! If it is in an open space outside, this mercury vapor may not have much effect, but in this limited space of the dragon's lair, Da Fei is looking forward to the mercury vapor infinitely! It's like a stuffy fart in an elevator, and everyone can't avoid it!

However,

When time passed second by second, the enemy poisoning that Da Fei was expecting did not seem to appear! Judging from the neat arrangement of the red dots on the radar, even the enemy army did not appear in the middle of the storm, and the red crystal dust on the edge of the whirlwind blocked both Da Fei's sight and the battlefield!

Da Fei was stunned on the spot? What's going on? What's the deal with this red crystal dust? At first, Da Fei thought that the red color was the flame of a steam explosion. But now it seems that it is clearly not! But at least there are a few benefits. The crystal dust was like a shield that blocked the dragon's breath attack. The Sky Boat and the Flying were able to take advantage of the opportunity to recover their breath!

So what to do now? Dafei is at a loss! Perhaps, how can you just watch quietly and wait quietly for the Flying to recover?

At this moment, the NPC technician suddenly spoke: "Mr. Captain, this could be Cinnabar!" ”

Da Fei was shocked: "Cinnabar?!" ”

I'll it! Isn't cinnabar the famous alchemy regulars who eat the dead without losing their lives, mercury sulfide (HGS)? It wasn't until this moment that Da Fei suddenly realized! For example, in the life tip, when the mercury thermometer breaks and the mercury overflows, you can use sulfur powder to neutralize the toxicity! In other words. The other party's sulfur dragon breath is neutralized with mercury to offset it? This is far from the idea of my brother poisoning the other party's entire army!

NPC technician did shake his head again and said uncertainly: "I'm sorry, my alchemy results in the city of mages are very limited, mercury and sulfur together are easy to produce cinnabar, but this crystal dust is obviously a crystal-like resource, it may not be the same substance as cinnabar, if the city lord is interested, you can try to cool down and collect!" ”

Da Fei's jaw dropped: "Cool down and collect!?" ”

At this moment, Elena volunteered, "My lord, I'll come!" Now that the enemy's dragon's breath can't attack us, I can safely cast spells on the deck! ”

I'll it! Are you sure now is the time for research? Well, being idle is also idle! Da Fei also immediately said, "Let's go." I'll take a look too! ”

So, Da Fei took Elena to the deck. When Eleana cast a spell, the Sky of the Flying was covered with frost crystal dust, and then the frost spread again with the whirlwind, cooling the whole field in an instant, and under the condensation of the frost, one after another fist big red crystals formed in the air, swirling with the wind and shining with the crystal!

At this moment, Da Fei was dumbfounded! really completed the experiment on the battlefield, how rebellious is my brother's team of sub-heroes!

"That's right! This is a new type of crystal mine! "Elena concludes with great certainty!

"Crystal Mine!?" Da Fei's first reaction was: "Can my Seraphic Troops be used?" ”

Elina smiled, "Why don't you just try to collect it?" ”

How is it collected? When things got to this point, it was already difficult for Da Fei, Da Fei immediately summoned all the Seraphs, as well as the 10 Seraphs in his own saint space, and directly activated their skill crystal ammunition replenishment, and let them fly into the sky to catch them! If you can catch it, it's a crystal, if you can't, it's not a crystal, this is the easiest and most effective way to judge a crystal!

And the Seraphic Legion was not disappointed, and a line of system prompts swiped out on the screen:

- System Prompt: Your Seraph's Unit's Crystal Ammo Skill has been replenished with 6 Unknown Crystals!

- System Prompt: Your Seraph's Unit's Crystal Ammo Skill has been replenished with 7 Unknown Crystals!

。。。。。。

Oh also! Da Feile, I really have the intention to plant flowers and flowers that don't bloom, won't this be the same rhythm of discovering new substances as when mercury wood was discovered? And the more unknown the substance, the more high-end and rarer! After all, it is the crystallization of concentrated mercury and high-pressure sulfur vapor processed by the stomach of the Rusty Dragon, and its power is at least twice as strong as the two?

Okay, then hurry up and collect!

For a while, the stalemate on the battlefield was the strange figure of the Seraphs following the whirlwind busy gathering, and the Seraphs not only collected the 9 units of their own ammunition packs, but also began to step up the transportation to the Holy Vine Cargo Hold.

With the continuous neutralization of mercury and sulfur, the sulfur smoke in the space quickly thinned, and Da Fei finally saw the panorama of the dragon's lair, which is a huge and wide circular cave, and the stone wall of the cave is densely packed with small stone caves like beehives, each small stone cave is a small dragon's den full of sulfur, and the flying dragons besieging themselves are densely guarded in front of their respective small stone caves, and continue to return to the cave to replenish sulfur ammunition.

Da Fei couldn't help but gasp! This lineup, even if you lose, you won't be unjust! Maybe this is simply the plot that the player must lose and must accept surrender! Maybe the other party is the kind of NPC that can promote hidden forces like Yi Shuer?

Just as Da Fei was thinking wildly, the surprised voice of the Dragon Mother sounded in the space again: "I didn't expect you to be able to withstand my attack for so long, it's really not an accident that you can come here." But here you have no way to escape, your weapons will not be able to be consumed for long, and your advantage will be lost! I can give you one last half minute to see what you're going to do and surrender! ”

- System prompt: Sintigosa, the Mother of Dragons, has asked you to surrender again, do you accept it? You have 30 seconds to think about it!

Da Fei's heart was shocked! Sure enough, there is a first persuasion and a second one! A hostile force that is so patient with the player is obviously not a hostile force in the absolute sense!

However, this is all Da Fei's conjecture, surrender is still impossible, Da Fei can't take such a big risk, not to mention that Da Fei's Seraphic Angel has collected nearly 200 units of unknown crystals, and Da Fei is even more confident!

Okay, she's right, my brother's holy vine power and mercury can't consume her with enough ammunition, so let's decide the winner in a quick battle!

Refuse to surrender!

At this moment, Sintigoza's angry voice resounded through the dragon's lair again: "A mere mortal! It's so stupid and arrogant, you gave up your last chance! Then you will be buried here with your proud airship! ”

Then the next moment, three rust dragons with a heroic aura around them and black dragon armor all over their bodies appeared in the dragon's lair!

Dragon Hero! Or the appearance of playing wholesale! At this moment, Dafei's eyes are about to pop out! Although Da Fei already has a peerless beauty Zavala, Savala is either in soul form or in the form of an ordinary human NPC, and this is the first time Da Fei has seen a real dragon hero!

There is no doubt that this is a dragon force! A dragon force that is definitely similar to Yijuer!

And with the appearance of the three Rusty Dragon heroes, the whole body of the Rusty Dragon immediately burst out with a metal-like luster, obviously the defense power has greatly increased the rhythm, and the thing that Da Fei is most worried about has appeared - Da Fei is most afraid of fighting with the hero legion! Especially against the heroic legions of this high-end race!

But now Da Fei has no way to retreat, while the mercury is still there, and the power of the holy vine can still maintain the storm, Da Fei waved his hand: "The whole army is ready to fight, and the Seraphic troops are aiming!" ”

(Although the physical level of the ashtray is questioned due to the poor state of the ashtray in all aspects, in order to be worthy of the physical education teacher who educates the ashtray, the ashtray can only show its chemical strength!) (To be continued.) )