500 units of concentrated mercury is equivalent to 5,000 units of ordinary mercury, which is equivalent to 3 to 5 ordinary large-scale shipping ships. It is like a mountain when piled on the dock. What Serbia needs to do now is to volatilize this mountain-like existence.

Everyone!

At this moment, Da Fei could no longer imagine how far the intelligence and growth of the epic-level plot hero could be improved. Da Fei even did not expect that the concentrated mercury originally used as reserve fuel would be used in this place! But as long as it can be fully

Destroy the Dragon's Cave, this mercury is worth it! All Da Fei can do is watch with excitement.

At this time, on the lakeshore of the Shengteng Central Village, there was still the magic circle used to absorb the soul of the Hydra. Serbia looked serious and tried his best to cast spells. At the same time, Tamilia opened several space doors in the Shengteng cargo space, and went up

Bai's vine demon troops poured out barrels of mercury, and then the mercury was instantly carried away by the whirlwind surrounding the sky ship. When the mercury whirlwind encountered the scorching dragon's breath heat wave, the mercury instantly boiled and exploded into red steam.

Spread around!

Is it done? Da Fei clenched his fists tightly in excitement! If it were in an open space outside, the mercury vapor might not have much effect, but in this possibly closed and limited space of the dragon's lair, Da Fei's reaction to the mercury vapor

Infinitely looking forward to it! This is like a stuffy fart in the elevator, no one can escape it!

However--

As time passed by, the enemy poisoning that Da Fei expected did not seem to appear! Judging from the neat arrangement of red dots on the radar, even the enemy troops staggering in the storm did not appear. The red crystal dust on the edge of the cyclone did not appear.

It cuts off Da Fei’s sight and also cuts off the battlefield!

Da Fei was shocked on the spot? What is going on? What is going on with this red crystal dust? At first Da Fei thought that the red color was the flames of the steam explosion, but now it seems that it is obviously not! But at least there is something

Benefit. This crystal dust blocked the dragon's breath attack like a protective shield, and the Sky Boat and the Flying Number were able to take the opportunity to recover!

So what should we do now? Da Fei is at a loss! Perhaps, just watch quietly and wait for the Soar to recover?

At this moment, the NPC technician suddenly spoke: "Mr. Captain, this may be cinnabar!"

Da Fei was shocked: "Chensha?!"

Damn it! Isn’t cinnabar the famous mercury sulfide (hgs) that is a frequent alchemist who eats dead people without losing his life? It wasn’t until this moment that Da Fei suddenly realized it! For example, in the life tips, when the mercury thermometer breaks and the mercury spills,

You can use sulfur powder to neutralize the toxicity! In other words, the opponent's sulfur dragon's breath is neutralized by the mercury? This is far from my idea of ​​poisoning the opponent's entire army!

The NPC technician shook his head again and said uncertainly: "I'm sorry, my alchemy achievements in the City of Mage are very limited. Mercury and sulfur are easy to produce cinnabar when combined, but this crystal dust is obviously a resource similar to crystal, and may be similar to crystal dust.

Cinnabar is not the same substance, if the city lord is interested, you can try to cool down and collect it!"

Da Fei’s jaw dropped to the ground: “Cool down and collect!?”

At this moment, Elina volunteered and said: "Sir, let me do it! Now the enemy's dragon breath can no longer attack us, and I can safely cast spells on the deck!"

Let me kill you! Are you sure now is the time to do scientific research? Well, idle time is idle! Da Fei immediately said: "Let's go, I'll take a look too!"

So, Da Fei brought Elina to the deck. As Elina cast a spell and waved, there was a cloud of frost crystal dust in the sky of the Flying Ship, and then the frost spread again with the whirlwind. In an instant, the whole place was cooled, and under the condensation of frost

Next, big red crystals formed one after another in the air. The crystals danced in the wind and sparkled!

At this moment, Da Fei was stunned! He really completed the experiment on the battlefield. How incredible is his team of deputy heroes!

"That's right! This is a new type of crystal mine!" Elina concluded with certainty!

"Crystal mine!?" Da Fei's first reaction was: "Can my Seraph troops be used?"

Elena smiled and said, "Can't we just try to collect them?"

How to collect it? At this point, Da Fei couldn't help it anymore. Da Fei immediately summoned all Seraphs and the 10 Seraphs in his saint space, and directly activated their skills to replenish crystal ammunition. Let them fly up to the sky to catch it.

!If you can catch it, it’s a crystal. If you can’t, it’s not a crystal. This is the simplest and most effective way to judge a crystal!

As expected, the Seraph Legion was not disappointed. Lines of system prompts appeared on the screen:

——System prompt: The crystal ammunition skill of your Seraph unit has been replenished with 6 unknown crystals!

——System prompt: The crystal ammunition skill of your Seraph unit has been replenished with 7 unknown crystals!

...

Oh yes! Da Fei is so happy. He really wants to plant flowers that don’t blossom. Isn’t this the same rhythm of discovering new substances as when mercury wood was discovered? And the more unknown the substance is, the higher the quality and the rarer it is! After all, this

It is the crystallization of concentrated mercury and high-pressure sulfur steam that has been processed by the Rust Dragon's intestines. Its power is at least twice as powerful as the two?

Okay, then hurry up and collect it!

For a moment, the stalemate on the battlefield was the strange figures of the Seraphs who were busy collecting after the whirlwind. The Seraphs not only collected the 9 units of their own ammunition bags, but also began to move extra to the Holy Vine cargo hold.

As the mercury and sulfur continued to neutralize, the sulfur smoke in the space quickly became thinner, and Da Fei finally saw the full view of the dragon's cave, which was a huge and wide circular cave. The cave walls were densely packed with small stone caves like a honeycomb.

Each small stone cave is a small dragon's cave filled with sulfur. The flying dragons that besiege them are densely guarding in front of their respective small stone caves, and are constantly returning to the cave to replenish sulfur ammunition.

Da Fei couldn't help but take a breath! With this lineup, even if he loses, he won't be defeated unfairly! Maybe this is a plot where the players must lose and must accept surrender! Maybe the opponent is someone like Yizuer who can trigger the hidden

A powerful NPC?

Just as Da Fei was thinking wildly, the mother of dragon's surprised voice 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 came here. But you have no way to escape here, your

The weapon cannot be used up for long, and your advantage is gone! I can give you the last half-minute chance to recognize the situation and surrender!"

——System prompt: Dragon Mother Cindy Gossa asks you to surrender again. Do you accept it? You have 30 seconds to think about it!

Da Fei's heart was shocked! As expected, there was a second attempt to persuade the players to surrender the first time! A hostile force that is so patient with players is obviously not a hostile force in the absolute sense!

However, this is all Da Fei's conjecture. Surrender is still impossible. Da Fei cannot take such a big risk, not to mention that Da Fei's Seraph has collected nearly 200 units of unknown crystals. Da Fei is even more confident.

increase!

Okay, she is right, the power of the holy vine and the mercury are not enough for her who has enough ammunition, so let's fight quickly to decide the outcome!

Refuse to surrender!

At this moment, Cindy Gosa's angry voice resounded through the dragon's lair again: "Just a mortal! It's so stupid, arrogant and ridiculous. You gave up your last chance! Then you will be buried here together with the airship you are proud of!

"

Then the next moment, three rusty dragons surrounded by heroic auras and clad in black dragon armor appeared in the dragon lair!

The dragon hero! He still appeared in bulk! At this moment, Da Fei's eyes were about to pop out! Although Da Fei already had the peerless beauty Zavala, Zavala was either in the soul form or in the form of an ordinary human NPC.

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 Yi Zuer!

And with the appearance of the three Rust Dragon heroes, the whole body of the Rust Dragons immediately erupted with a metallic luster. Obviously, the defense power was greatly increased. The thing that Da Fei was most worried about appeared - Da Fei was most afraid of the Legion of Heroes.

Fight! Especially against this high-end race of heroes!

But now Da Fei has no way out. While the mercury is still there, the power of the Holy Vine can still maintain the storm. Da Fei waved his hand: "The whole army is ready to fight, Seraph troops are aiming!"

(Although the ashtray is in poor condition in all aspects and has poor thinking, which has led to the ashtray's physical level being questioned. In order to be worthy of the physical education teacher who educates the ashtray, the ashtray can only show off its chemical prowess!) (To be continued)
Chapter completed!