As a low-level skeleton, Locke naturally didn't know the details of ordinary contracts before he signed a servant contract. Creatures in the Undead World Realm can only learn about the servant contract from the origin of the undead plane after they are promoted to high-level undead creatures, and can sign a servant contract with mid-level and low-level undead creatures.

In the realm of the undead, the weak eat the strong, and the weak instinctively submit to the strong. Therefore, when a lord-level existence asks a low-level undead creature to sacrifice its soul fire and sign a servant contract, the low-level undead creature will not have much resistance.

Once a servant contract is signed, it is equivalent to losing freedom or even everything. And the low-level undead creatures have very low intelligence, and they don't even have the concept of freedom, they only have the instinct to survive, and in the face of complete destruction and signing a servant contract, they will naturally choose to sign a servant contract.

In fact, the servant contract is good for the undead plane, and can make the undead plane more orderly. In the midst of chaos, order is established. Every plane has a certain order, and the establishment of order can make the development of a world realm more powerful.

Even in the chaotic and evil abyss, there is an evil order suitable for the abyss environment among the demons and demon races.

Moreover, for the low-level undead creatures in the undead plane, signing a servant contract has certain advantages in addition to the disadvantages of losing their freedom.

More than ninety percent of the low-level undead creatures in the undead plane will eventually be completely destroyed by the soul fire devoured by other beings of the same level. Only less than one percent of the undead creatures can truly grow up and become lord-level or higher existences in the undead plane.

And if a mid- or low-level undead creature signs a servant contract with a lord-level undead powerhouse, in addition to being able to get the protection of the lord, it can also improve its wisdom to a certain extent.

If the mid- and low-level undead creatures are more intelligent, they will have more chances of defeating the opponent when they encounter the same level of undead creatures. The reason why Locke was able to defeat the second-level skeleton warrior was precisely because he had extremely high intelligence, while the intelligence of his opponent was much lower than his own.

Originally, this second-level skeleton warrior almost only had instinct, but because he was also a contract servant of the bone dragon lord, he already possessed low-level intelligence in addition to instinct, so it would take Locke longer to defeat the other party, and finally be captured by the powerful skeleton mage who arrived.

At this time, facing the order of the bone dragon lord, under the smile of total destruction.

Locke had to follow the other party's request, except for a smaller soul fire, and handed it over to the powerful bone dragon lord.

Unlike other low-level skeleton creatures, Locke is not a pure undead creature, but has a higher intelligence and values freedom.

After Locke took the initiative to hand over his soul fire, the bone dragon lord opened his mouth and inhaled, and this soul fire fell into the soul fire of the bone dragon lord and was sealed in the depths of the soul fire.

After devouring the soul fire, Gregory did not communicate with Locke again, and his huge body fell to the ground again. For the powerful Bone Dragon Lord, having an extra low-level contract servant is not something to celebrate, and he doesn't care at all.

Although Gregory was born only a few decades ago, he has received thousands of low- and middle-level contract servants, and has also received thousands of servant soul fires.

Of course, for decades, most of the indentured minions who followed the bone dragon Gregory had completely lost their soul fire and disappeared into the undead plane. At this time, Gregory still had just over two hundred undead minions.

Because, the middle and low-level undead creatures in the realm of the undead world are extremely easy to fall.

Even if these undead servants have signed an undead contract with the lord powerhouse, their wisdom has greatly increased and their ability to save their lives is stronger. It is also difficult to survive the battles with the same level of existence again and again. What's more, there are powerful zombie lords in the adjacent area of this bone dragon territory, and from time to time, a large number of undead minions will be driven to the bone dragon territory to fight against the power of the bone dragon Gregory.

Fierce battles between undead lords often result in the fall of a large number of undead minions. Eighty percent of the undead minions of the Bone Dragon Lord Gregory fell in the battle with the powerful forces of the Zombie Lord Servants, and only twenty percent of the undead minions fell in hunting battles with other undead creatures.

When Locke swallowed the soul fire he had sacrificed in the Bone Dragon Lord, he completely lost his freedom and had a sense of inautonomy between life and death.

Locke could sense that at this time, he had already developed a close connection with this bone dragon lord, and he would not be able to disobey any orders from the other party, even if the other party allowed him to sacrifice all his soul fire at this time, he must do so.

Signing a servant contract with this powerful bone dragon lord, Locke was not able to improve his intelligence like other low-level undead creatures, but simply put his life under the control of the other party.

In the realm of the undead, there are two common contracts witnessed by the origin of the plane, which constitute the two cornerstones of the undead plane, the servant contract and the summoning contract.

Medium and low-level undead creatures, once they sign a servant contract with a lord-level existence, they are involuntary to live and die. Once these two contracts are violated, the mid- and low-level undead creatures will basically collapse and completely disappear with soul fire.

Only higher-level undead creatures can break the contract with their great strength and not fall completely. Of course, if you sign a contract, even if your strength skyrockets to the lord level, the contract you violate will be hit hard, or even fall to the level.

Of course, such servant contracts and summoning contracts, because they are very common, are not too restrictive.

The smaller the difference in strength between the servant contracts, the weaker the binding nature of the contract, and the powerhouses of the Sanctuary can even ignore the servant contract, because the soul fire existing in the Sanctuary is no longer bound by the rules of the undead plane, and it is not at all elegant to lose some.

The summoning contract is less binding on the powerful presence of the undead plane. However, there are very few undead powerhouses who will break the summoning contract. And those weaker mid-to-low-level undead creatures didn't even know that they had broken the contract.

Undead mobs reject minion contracts, but they don't reject summon contracts.

It is a great honor for undead creatures to be summoned to fight in other planes, and there are many benefits to being gained by killing more creatures from other planes and bringing their bodies to the undead plane. Wise undead creatures want to be summoned to other planes, and even want to stay in other planes and fight for the undead plane.

After signing the servant contract with the Bone Dragon Lord, Locke couldn't help but breathe a sigh of relief even though he felt very regretful. Locke's biggest worry is that the other party will kill him directly. Now, I just lost my freedom, and I still have the possibility of turning the tables.

The servant contract only restricts his freedom, and he is controlled by the master of the contract, but his mind is still free, and his biggest secret is not exposed. As long as one's strength is raised to the lord level, or the bone dragon lord falls, it is possible for him to break free from the control of the bone dragon lord and regain his free body.

After Locke also became a contract servant of the Bone Dragon Lord. The mage skeleton that brought Locke with him also regained the leg bones and two skeletal arms for Locke, and assembled them for Locke.

The reassembled skeleton body does not fit perfectly into Locke's original bone frame, at least Locke's speed and dexterity are worse than before when he moves.

Of course, this doesn't have much effect, if other undead creatures encounter such a situation, they only need to use the power of the undead to temper for a period of time, and they can eliminate the discomfort and make the new parts fit their bodies.

And Locke doesn't even need to use the power of the undead to refin, he only needs to use bone alchemy to find some bone refining, and he can reinstall the most suitable bone frame for himself.

After becoming a servant of the Bone Dragon Lord, Locke also learned from the original message transmitted by the Bone Dragon Lord that as his servant, he was not allowed to fight fiercely with other minions, and could only hunt the soul fire of other undead creatures other than the Bone Dragon Servant to increase his strength, and he also needed to capture more undead minions for his master.