Sebastian finally had a basic idea of the set-up of the Doppelganger and Invisibility King's monster inheritance.

Due to his one month of captivity inside the military base of the Atlantian Crimson Fleet, through the time that he spent with Tonado, he already learned a lot of basic knowledge about Oceania, mostly about monster inheritances.

The set-up of monster inheritances was different from one mutated beast to the other, but they generally had a template that they followed.

In most inheritance grounds, the entrance to the inheritance ground was visible and not hidden just like in the Sea King's inheritance, but there were those rare inheritance grounds that hide the entrance.

To get access inside, special requirements had to be met.

As soon as the predators get access inside the inheritance ground, the candidate screening process to get the ideal inheritor starts.

This process was also different in different monster inheritances.

The template though was mostly divided into the first inheritance test, the second inheritance test, and the third inheritance test.

The first test was mostly focused on eliminating those predators that were not qualified to become candidates for the ultimate inheritance.

It was designed to also know the foundation of the survivors.

After the first test, the number of candidates decrease by a lot which not only means that the test could now be more thorough, but also meant that only the best of the best qualified to this round.

This was when the inheritance will start seeking the inheritor.

The second test was focused on molding the inheritor. historical

Through different settings of either adding benefits in misery, adding benefits after certain conditions were fulfilled, voluntarily adding benefits, and a lot of other settings, the will tries to mold the inheritor closer to the dead monster who created the inheritance.

This was to enable compatibility and to make sure that the inheritor becomes as great as the dead monster if not greater while reflecting the essence of the dead monster.

In most inheritance grounds, the second test was the last since the dead monster's will would have found the perfect candidate already.

Then, the ultimate price would be given to this candidate.

Sebastian already understood the set-up of the Doppelganger and Invisibility Sea King's inheritance ground, even if not fully.

The first test that he already passed through was straightforward. Apart from eliminating the unqualified, it also served as the perfect platform to push the survivors to the limit and to reveal how deep their foundations were.

In most cases that were not like Sebastian's, those predators were forced to reveal all their trump cards to qualify, which gives the will all the information that it needs to understand every candidate that survived.

The second test which the Sea King's will tried to scam him about by calling it the endurance test was to build the candidates into the dead Sea King's ideal form and definition of a predator.

It was also focused on molding the inheritor.

While molding them into the ideal form of a predator, the Sea King's will would access them from their intelligence to their brute strength, every single advantage that they had while trying to change them if need be.

To change them was the reason why there were benefits.

Sebastian guessed that benefits were prepared in every single hall of this catacomb if the Sea King's will was able to turn it all into the inheritance ground.

Also, he guessed that the benefits in the deeper halls would increase in quality marginally with the increase in strength of hostile predators.

He guessed that there may be purple tier Abomination Hounds here.

Sebastian didn't care too much about this at the moment though, the benefits in this hall were the reason why he exploded into action.

Activating his movement skills, he rushed towards the extreme end of this hall that led to the other tunnels which were probably passages to the other halls.

Sebastian still remembered his last visit here. In his memories, at the end of the hall where it branched into other tunnels sat a blueish white box.

If he was not wrong, if that blueish white box was a treasure, the Sea King's will probably already worked on it and turned it into the reward for this hall.

Bam! Bam!

Sebastian bulldozed his way through the mutated beasts, spamming them with skills endlessly along the way till he got to the end of the hall.

On getting there, he was surprised, there was no blueish white box.

He was about to denounce his theory, but he stopped the next moment. If the Sea King's will already turned the box into the benefit of this round, then it had no obligation to keep it here, it could be anywhere in the hall.

As soon as Sebastian thought of this, he turned around.

With his enormous body, he started bulldozing through the mutated beasts and skeletons again as he looked for where this blueish white box was hidden.

It took him 15 minutes due to the fierce retaliation and hindrance from the mutated beasts before he finally found the blueish-white box. This treasure was hidden in the middle of the hall which had the most cluster of beasts.

As soon as Sebastian got close enough to the white box which constantly emanated cold out, his system lit up a notification.

[Treasure Discovered: Elemental Tessaract!]

[Description: This is a rare natural material that is nurtured for a century in an extremely cold region, and is formed from the temporary combination of extreme cold and an extremely hot region.]

[Use: It is a core material used in creating specific advanced magic weapons and gadgets.]

Seeing this description, Sebastian grinned. Just the name alone was able to take him over the moon, but what made him happiest was the fact that his deduced theory of how the inheritance ground worked was correct.

There was nothing more worth being proud of than the results of your hard work, it means a million even if you killed yourself to achieve it.

He officially got his first gain from this inheritance ground, a natural material that served as a core material in crafting advanced magic weapons and gadgets.

Sebastian was over the moon with joy.

Taking advantage of his sudden inactivity, a skeleton tried to bolt in and get some damage into his enormous body but from his sides suddenly jutted out a sharp spike that penetrated and wreaked the fragile skeleton.

With this first success, Sebastian was motivated to do more.

He didn't know the plans of the Sea King's will, he didn't know the ideal inheritor that the will wanted, but since benefits were lying so helplessly before him, he would be a fool not to take them.

Sebastian quickly went on the move again, bulldozing and killing his way through until he left this first hall where he found himself in the catacomb.

After swimming through a long tunnel, he arrived in another hall.

On getting here, apart from the berserk Abomination Hounds and the other natives of the catacomb, Sebastian saw a lot of familiar faces.

Some of the predators that battled intensely for the opportunity to enter the inheritance ground were now here, and while battling the berserk natives, they were already battling between themselves for the reward of this hall.

Seeing the shiny reward, Sebastian did not hesitate to jump into the fray.

He was quickly engulfed and embroiled in the battle.