Oz wanted to collect some "pollutant source substances" and go back to do the experiment, but when Oz found a bottle and tried to fill these dark matter, he found it painfully - there was no way to fill it!

Polluted source substances have extremely strong corrosion ability. Whether it is an ordinary glass bottle or a crystal bottle for magical potion, it will be corroded into slag when it encounters a polluted source substance and cannot function as a container at all.

"At least I don't need to question the power of this thing." Oz threw the bottle with only half of his hand aside.

"My devil, if you want to put this thing, you need to soak the bottle in your blood." Mona said to Oz.

Oz looked at his arms and his face turned green: "You have to soak it with my blood!?" Oz needs to bleed every time he resurrected his family, which made Oz almost psychologically bleed due to excessive bloodletting!

"[Polluted Source] will pollute all objects belonging to this world. If you want to use objects from this world to install them, the object itself will be polluted soon. If the object itself is not strong enough, it will be directly destroyed." Mona explained to Oz, "But if you first curse the object with the blood of the devil and turn it into a curse object, then it will be immune to the pollution and curse of the polluted Source."

"The strength of the object itself..." Oz stared at the contaminated magic node in the cave and thought for a while, "That is, as long as the strength of the object itself is sufficient, even if it is polluted, it will not be destroyed, right?"

"It's just that the length of time it was destroyed is different~" Mona smiled, "In the end, it's still hard to escape the destruction."

"Okay..." Oz had no choice but to release a little blood again, and brought a small bottle of contaminated source substance to the Demon Realm with the contaminated crystal bottle.

The natural magical talent and experience from previous lives gave Oz an excellent alchemy level, and the [dark cuisine] skill from the Demon King system made Oz a knowledge level far beyond ordinary mages in the taboo field of "Life Alchemy". It only tested the "polluted source substance". It was naturally no problem.

After conducting a simple test and experiment on the polluted source material, Oz found that the curse effect of the polluted source material is very strong. As long as the objects that touch the polluted source material, whether it is leather, metal or stone, all of them have decayed and corroded. Not only that, the polluted source material can also destroy the magic resistance of the corroded object.

When Oz was testing with the Earth Dragon Skin, the Earth Dragon Skin with good magic resistance was much slower after encountering the polluted source substance than other objects without magic resistance. However, once it started to be corroded, the magic resistance of the Earth Dragon Skin would be destroyed! After that, the Earth Dragon Skin without magic resistance was quickly destroyed by the pollution source substance!

In the alchemy room of Demon King Castle, Oz looked at the ground dragon skin that had almost turned into powder on the test bench, and was very satisfied with the corrosion ability of the polluted source substance.

"It seems that there is really no defense that can resist the erosion of this substance!" Oz picked up the crystal bottle that originally contained the contaminated source substance and put it in his pocket. "The next one is to conduct the ** experiment."

Oz left the alchemy room with a crystal bottle and a timer for contaminating the source of pollution.

Outside the alchemy room, Mona was lying on the ground, teasing a monster the size of a thumb.

"Mr. Your suspicion is really serious." Seeing Oz come out, Mona immediately stood up, "I have told you about the effect of the pollution source substance, why do you waste time testing?"

"I heard you. It is completely different from observing yourself." Oz pulled the door of the alchemy room casually, "I can't intuitively feel its power just by listening to you."

Mona smiled and said, "So now do you feel its power?"

"Feel it." Oz paused, "The effect was even stronger than expected."

"Hehehe~" Mona smiled happily. "This thing can only be found in the destroyed world, and of course it will not be an ordinary person."

"Let's go. Let's go to the main plane to find some animals to test it." Oz raised his foot and walked out.

"By the way, Lord Demon!" Mona quickly followed, "In the Maid Academy, there is an intern maid who can graduate at any time. Do you want to hold a graduation ceremony for her?"

"Graduation ceremony?" Oz was stunned for a moment, "...Why didn't you say this kind of thing when you were in the academy before?"

"Ahha~ I'm busy training those beast-eared girls, so I forgot that people won't tell you about this!" Mona knocked on her head and said cutely.

"But they have only been in the college for a few months, right? Someone graduated so soon?" Although it wasn't nine years of compulsory education, it was too fast! Even those technical schools that cheated money were not so fast.

"What a maid is important is to have a heart of service! As long as you have a heart of service, everything else can be learned slowly during the work process." Mona raised her thumbs up at Oz and said, "And that girl is a genius to some extent."

Oz: "...Okay, let's go to Maid Academy when we come back."

Billy City is still in a lifeless state. Oz ran to the polluted magic node in the city, took some polluted source substances, and then left Billy City, and went outside the city to find suitable experimental subjects.

When Oz was experimenting with the effect of polluting the source substance outside, an airship on the sea that still shone brightly even during the day was moving towards the south.

This is a super-large war airship, with a length of hundreds of meters, and just looking at it gives people a strong sense of oppression! The Supreme God mark is drawn on the airship, which symbolizes the identity of this airship - an airship from the Southern Supreme God's Holy See. People who can ride such a large airship at least have bishop level.

At this time, the airship was moving along the lane towards the southward Fort.

If a person who knows something about international relations, after seeing all this, he will immediately understand one thing: the Kingdom of Otto has finally made concessions!

The dispute between royal power and theocracy has always existed. As a country with royal power supremacy, every king of Otto firmly resisted the Supreme God Church, restricted the missionary activities of the Supreme God Church in the kingdom, and actively introduced other religious beliefs to fight against the Supreme God Church and weakened the influence of the Supreme God Church in the kingdom.

Due to this behavior of the Otto royal family, the relationship between the Kingdom and the Church of the Supreme God has always been not very good. Therefore, when the Kingdom was defeated by orcs, the southern countries that believed in the Church of the Supreme God did not provide any assistance to the Kingdom of the Otto kingdom - even if everyone knows that the Orcs are the mortal enemy of mankind, once the Kingdom of Otto is destroyed, the next one to suffer will be the Southern countries.

However, when the large airship started to sail to the Hewan Fort with reinforcements, it finally informed that the Supreme God Church and the Kingdom reached a consensus, and the Supreme God Church finally officially joined the war! And those who were originally worried about "death of their lips and teeth" were finally able to breathe a sigh of relief.

On the airship and on the spacious bridge, a white-haired cardinal was sitting on the commander's chair, playing with the scepter in his hand. On both sides of the commander's chair, two paladins stood there, acting as adjutants and guards.

"Hawan Fort has any contact?" the Cardinal asked gently.

Behind the Cardinal, a paladin who acted as an adjutant asked loudly to the drivers under the bridge: "Contactor! Is there any news delivered?"

"Report, the liaison has not received any contact yet!" a driver said quickly.

"Send a contact information." The Cardinal sat upright and spoke slowly, "Notify Bishop Aaron that the Kingdom of Otto is a barrier to the north and must not fall into the hands of orcs! We will arrive at the Hewan Fort in one day. If he still cannot let Robert relax at that time, then he can only use the last resort. The glory of the Lord will spread all over the earth!"

"yes!"

The cardinal sat back on the chair and closed her eyes to meditate. The church had lost a cardinal in Billy City last time, and this time it was absolutely not allowed to fail again!

Just as the Cardinal closed his eyes and pondered, a pilot suddenly spoke loudly under the bridge: "Report! The detective eye found a new situation! A large flying object appeared in the southwest, and the target was flying towards us."

On Cambridge, the Paladin spoke loudly, "Report the target volume and quantity."

"Target volume: medium and large, quantity: 1. It is suspected to be a medium and small airship." The pilot reported.

"Is the airship coming from the direction of the River Bay Fort?" the Paladin thought for a while, "ignore it and keep moving!"

"yes!"

The airship continued to move forward, and not long after, a beautiful small airship appeared in everyone's eyes. The streamlined snow-white hull made people shine.

The Cardinal looked at the airship, and the golden light of magic shone in her pupils. After that, the Cardinal easily traveled hundreds of meters away, penetrated the airship driving window, and saw clearly the person driving the airship.

"Orc? And she's wearing maid outfit?" The Cardinal raised his eyebrows! He seemed to feel a little unhappy.

Although the church does not exclude orcs in its doctrine, there are still many clergy who hate orcs very much - especially those radical clergy. However, the reason why the Cardinal was displeased with this was not only because the other party was a half-orc, but more importantly, the Cardinal discovered that the half-orc was "very evil"! [Detection of Evil] The information fed back even made the Cardinal feel sick!

The Cardinal sat upright and his eyes froze: "The magic cannon is turned on, aim at that airship! Let the airship on the opposite side stop!" (To be continued, please search for astronomy, the novel is better, updated and faster!
Chapter completed!