Unlike the physical world of the Overworld, both the Abyss and the Celestial Realm belong to the outer interface, enveloped in the vast cosmic coat - the Void Star Boundary, which is filled with energy many times thicker than the Overworld.

In fact, although the existence there is flesh and blood, it is essentially a life that is closer to a combination of soul and energy, and is more easily transformed into energy form than the creatures of the main material world, so they can often carry part of their own power and consciousness into the main world to achieve their own goals.

For example, the true gods of the upper plane can descend in the form of incarnations or saints, and there are soul projections or power clones of abyssal demons.

Matter and energy are two ways of being of the same thing, and they can be transformed into each other when certain conditions are met, which Donald has learned from school textbooks in his previous life.

Macroscopically speaking, every creature born in the abyss, each soul will be marked with evil and chaos, and the alien creatures will gradually be assimilated by the rules of the abyss after a long time, and they are all their own property, or part of its body, to the will of the abyss.

Taking advantage of loopholes in the rules of the contract to hunt demons and completely wipe out their souls is tantamount to stealing the power of the abyss. Although the will of the plane does not have a mind of its own, and can only act according to the rules mechanically and instinctively, it does not mean that the will of a plane will not be punished for angering it. Especially the will of the Abyss, which is composed of countless planes, one of the most powerful top beings in the universe.

However, a silver demon is not even a speck of dust to the entire vast Endless Abyss Plane, and with the help of the Book of Truth, he carefully steals a small amount of power every once in a while, and it is estimated that it will not attract too much attention from the will of the Abyss.

Unless Donald takes the initiative to seek death and steals the power of the abyss, even if the abyss plane is in conflict with the main material world in nature, the power of the abyss can still be thrown into the main world with the help of demons or other creatures, and it is like playing with a strong person in the legendary realm to kill himself.

Therefore, although the more powerful the demon is summoned, the greater the harvest, but Donald still does not have the courage to be greedy, the silver level is already the limit of what he can deal with, although the loophole of this contract can only be found at least at the demigod level, and there are still two major ranks of legend and gold under the demigod, but how dare Donald dare to provoke the kind of existence now?

Most of the demons he was going to summon were only bronze strength, and these were as many as water droplets in the abyss of the middle and lower level demons of bronze and silver. Thinking that those summoned demons thought that they were coming to the main world to be happy and happy, and they could kill as much as they wanted, but in fact, they came to provide power for themselves with their souls and **, and they would not notice the loopholes in the contract until they died, Donald couldn't help but feel a sense of happiness from the bottom of his heart!

Soon, the Book of Truth completed the modification of the contract, and for Donald, a high-level artifact without autonomous will was equivalent to a supercomputer, and he was an operator, although it was a rather lame computer operator, but it was still very easy to order the artifact to do something within the rules. As for the ability to summon and permanently summon, they are outside the rules allowed by the Overworld, so they must be achieved at the cost of energy and soul power.

After revising the contract, Donald observed the two canine demons and found that they basically did not notice the change in the contract, so he resisted the urge to kill the demons himself to absorb the power, and ordered the magic destroyer in front of him to do it, and solved them in the surprised and unwilling expressions of the two canine demons.

The elven warrior's weapon has the attribute of breaking demons, and it is extremely sharp, so Donald will order him to attack, if it is Clinton's infantry standard steel sword, I am afraid that it will take a few more slashes to completely kill the demon with tough skin and strong vitality.

"What's going on?"

Donald couldn't help but be a little surprised to see that the Book of Truth had no souls absorbed after the heads of the two canine demons were cut off, and he immediately realized that he had gone into a misunderstanding of thinking.

Previously, the Blade Demon was directly destroyed by the magic energy of its demon core, exposing its soul, so the Book of Truth could directly absorb it, but this time Donald ordered his subordinates to summon creatures to kill the demon with a physical attack, so their souls were kept intact in the heart core.

After thinking about it, Donald ordered the elven warrior to dig out the heart cores of the two canine demons and give them to him, the master.

But in the end, he took advantage of the loophole of the contract, held the heart core in his hand, and at the moment when his soul was absorbed by the Book of Truth, Donald suddenly felt as if a huge and powerful idea like a world had descended from heaven and earth, although it was not aimed at himself, but the invisible pressure still made him feel trembling and fear emanating from the depths of his soul.

However, shielded by the Book of Truth, the thought did not detect Donald's actions, and the death of a silver demon was nothing to the abyss, nor was it a loss. There are perennial melee battles in the abyss, and countless demons die every second. Subsequently, forced by the rejection of the rules of the main material world, that will soon gave up the investigation and disappeared.

After the will was gone, Donald hurriedly took a deep breath, only to realize that he had been shocked into a cold sweat.

"I guess that the existence of Fang Cai is the will of the abyss! I must have sensed the abnormality in the contract, but the Book of Truth uses powerful rules from the other world, and the existence of loopholes has not been detected, so I will focus my attention here. Sure enough, it is an existence that the true gods dare not fight, even if the will of a star and a half descends on the main world, there is such a terrifying aura, no wonder there have been many gods who have fallen into the abyss!"

After this experience, seeing the horror of the Abyssal Will, Donald somewhat understood what kind of existence this dimensional will is. If every living creature in the plane is a computer, then the will of the plane is the intelligent system that manages the entire local area network, and the universe is equivalent to the entire Internet.

As a plane of will, they have firewalls and anti-virus software, supervise everything that happens in the plane, clear internal redundancy, resist the attack of foreign programs, kill viruses that invade the body, and refresh the program system at critical moments, but the plane will has no autonomous consciousness and emotion, and in case of some special emergencies, rigid rules will make multiple commands conflict with each other, resulting in the system being unable to respond in time to deal with it correctly, so there will be some loopholes to exploit. It's like clever hackers can use defense vulnerabilities to gain control of other computers and networks.

"It's just that for myself, such a strong and aggressive will of the Abyss Plane is too dangerous, so even if I can understand some basic information, I can't go to the hack to seize the benefits of it with my own strength, and I can only use the help of the Book of Truth to take advantage of it!"

Not daring to think more about the terrifying existence that even the true gods feared, lest it leave a serious shadow in his psyche, Donald changed his mood and began to examine the harvest of Fang Cai.

The demons hunted by the demon hunters will extract all the demonic power in the soul and bloodline, and there will be no more soul power or bloodline magic, so the Book of Truth does not get the soul power of the Fire Burning Demon, but the soul power given by these two bronze demons is second only to the Blade Demon each, plus the harvest of the previous two mages, now Donald's soul power reserve is close to the three thousand mark, and there are only more than 2,000 units left to gather a perfect soul to create a permanent existence of the hero's subordinates.

Moreover, after the soul is absorbed, the heart core that only has energy left is like a magic core and an elemental crystal, and the demonic power that is chaotic and evil to others can be directly absorbed by the Book of Truth and used for various exchanges and summonings.

After a few days, he can perform a second summon and collect more soul power, and the corpse of the demon can also create a lot of value. After a while, he had absorbed the remaining power of the Fire Burning Demon, and whether it was to absorb the demonic power again, he could summon it repeatedly, and all he paid was only a part of the magic power. For him, this method is equivalent to an additional free channel to obtain energy and soul power.

Because it was not destroyed, the corpses of the two dog demons still contained a lot of magic power, which was a more valuable material for the mage than the corpse of the demon beast, and with the two fresh demon corpses, Donald did not go directly to the road, but entered the boulder city.

The old mage was surprised to see his apprentice walking in with two bloody demon corpses.

"What's going on? Donald, have you been attacked?"

Donald smiled and told the old mage not to worry, and then said:

"I was ambushed by that sorcerer, but I was prepared to kill the other party's three demons, but unfortunately let him run away, and I didn't ask the person behind the scenes. ”

"It's good if you're okay, sorcerers are usually difficult opponents to deal with, and it's very rare for you to be able to defeat each other twice!"

"Teacher, you have won the award, I came this time to prepare to go to the battlefield, please teacher, you preside over the promotion ceremony for me, and write a letter of introduction, after all, when I get to the barracks, I have some talents. ”

"You've made the cut?"

The old mage was not happy to hear the news, but frowned and was a little worried.

Donald replied with a smile:

"Yes, I originally planned to accumulate for a period of time and wait for the foundation to be perfected before advancing to the ranks, but the sudden appearance of the enemy forced me to improve my strength as soon as possible!"

The old mage said: "Since you know the truth, then I can rest assured, fortunately, the strength level of the black iron stage will be promoted faster and there will be no big hidden dangers, in the high stage, you stay for a while longer, study more spells and alchemy principles, and master more third-level spells and magic circles, so that the strength of breaking through the bronze rank will be more stable." ”

"Yes, teacher!"

Seeing that Donald had sincerely accepted his teachings, Messelti wrote a letter of introduction in the name of the Boulder Mage Guild, explaining Donald's strength and identity. This is not to take care of Donald alone, generally mages want to go to the field to serve or do tasks, and the local club will give such a certificate.

After receiving the letter of introduction, Donald brought the three demon corpses and said:

"The corpses of these three demons are not a small harvest, I have already dug up the heart core, and the corpses will be handed over to the teacher for you to study!"

With Messer's erudition and experience, he naturally knew a lot about demonic creatures, and when he saw the corpses of two dog demons and a fire demon, the old mage, who had always been pampered, couldn't help but exclaim:

"You killed a Silver Demon? Looks like I'm going to have to replan your lesson!"

Donald listened and hurriedly explained:

"The two dog demons were killed by me and the summoned creatures, as for the fire demons, of course I can't deal with such a powerful demon with my strength, but I have obtained some relics of ancient alchemists in the treasures inherited by my family, including a piece of equipment to restrain the power of demons, but unfortunately it was destroyed after use, and there are still some puppets and potions left, if the teacher is interested, I can hand it over to you to study when I come back from the battlefield." ”

With this explanation, Donald thought that since the Chris mage already knew about the existence of the alchemy puppet, then he might as well find an excuse to take the initiative to reveal some of the creations of the Book of Truth, so as not to arouse suspicion in others next time he took it out. And if it weren't for the fact that the Book of Truth was too important, he didn't want to deceive this teacher who was really good to him too much.

With Messer's morality, he is naturally not greedy for his apprentice's things, but he is still very interested in items related to ancient alchemy, although he has the highest attainment in alchemy enchantment, but he also has a lot of knowledge in apothery, and the magic circle in the alchemy puppet also has a lot of references for him.

After receiving the three rare demon corpses, the old mage said directly:

"I know you're pressed for time, so keep it simple, I'll ask someone to change the second-level badge for you later, and as for the promotion ceremony, you can come back and make it up." You must be careful after going to the battlefield, although you are not afraid of ordinary orcs with your strength, but the battlefield is different from a single duel, and there are many times when it is beyond the reach of individual strength. ”

"Thank you for your concern, I am confident that I will return with honor! Please wait for my good news!"

After saying that, Donald said goodbye to his teacher, received his new badge, took two attendants, and left Boulder City non-stop to rush to the battlefield on the northwest frontier.