However, Feng Ruo was not without doubts, because according to the conversation between Xia Zhi and Na Luo Ji just now, this northern sea area should be regarded as an extremely important place, why not simply arrange a large defensive array in this place with the strength of the Endless City? At the very least, it is always okay to establish a stronghold on this desert island where you can temporarily settle down, right?

But looking at the deserted islands around them, there was not even a small courtyard except for the bare teleportation array! Not to mention any large defensive array.

At this time, it seemed that she could guess the doubts in Feng Ruo's heart, and Xia Zhi sighed faintly and said: " You just came to the Endless City, so you don't know a lot of things, although my Endless City can be regarded as an existence that is on par with the five major sects in the Immortal Cultivation Realm, it looks very majestic on the surface, but in fact, we are not the real masters in the Endless Sea, and it is not as low-key as it is rumored in the outside world, the reason why we are unwilling to be enemies with other forces in the Immortal Cultivation Realm is because we have to spend a lot of effort to deal with those sea creatures!"

"I think you also know how terrible the sea creatures in this endless sea are, it is said that the ancestors of my Endless City, in order to expand this sea area, but spent a huge price, and finally because of an accidental incident, reluctantly reached an agreement with the Dragon Valley, determined that with the Endless City as the center, the sea area within a radius of three million miles belongs to the scope of my Endless City, in this area, those sea creatures that have been transformed into the demon king level will not appear, we cultivators can hunt sea spirit beasts, and similarly, those sea spirit beasts can also hunt our cultivators, but if they go out of this range, then they will be devastated by the Dragon Valley！”

"Therefore, Feng Ruo, you must keep in mind, don't leave this range, unless you have a strong cultivation above the spirit infancy, don't take such a risk, and the sea area we are patrolling now is where the boundaries agreed in the agreement back then, our main task, on the one hand, is to dissuade those cultivators who trespass, and on the other hand, it is to patrol symbolically, although this is not useful, but at the very least, it can deter those high-level sea creatures to a certain extent, and remind them not to forget the original agreement, so that our cultivators can operate within this radius of three million miles！”

"As for the Blood Shark King, it is a shapeshifting demon king belonging to the Dragon Valley, it is also responsible for monitoring our cultivators, and its purpose is exactly the same as ours, so sometimes conflicts are inevitable, but fortunately, as long as this Blood Shark King does not appear in person, under normal circumstances, the situation will not be too serious!"

After listening to Xia Zhi's explanation, Feng Ruo also sighed for a while, he didn't expect that the Endless City would still be shouldering such a heavy responsibility, it is certain that if it was not for the agreement between the Endless City and the Valley of the Dragon, the current cultivator would not be able to say that he was so far into the Endless Sea, even in the area of the Stacked Mist Mountain Range, there was no place to stand, because the power of the sea creatures and spirit beasts was too strong, and he couldn't even imagine how terrifying the demon king in the Endless Sea would be?

It's just that there is one point, Feng Ruo feels a little strange, because the white-clothed city lord and the others obviously know the sealed place of the golden demon dragon, and their actions that day are also like guarding the sealed place, so, was it the ancient god who asked the ancestors of the Endless City to guard this place in the first place?

If so, then how could the Dragon Valley dare to resist and find trouble? You must know that at that time, even the true ruler of the Cangwu Realm, the Wood Demon Dragon, was sealed, let alone some of their little demon kings?

So there must be something he doesn't know, and I'm afraid that this truth can only be known if he has to consult the white-clothed city lord.

However, it is obvious that Feng Ruo does not have this qualification, not to mention that this distant legend has little to do with him, he is just curious.

At this moment, after communicating with Xia Zhi, Feng Ruo, who had nothing to do for the time being, greeted Xia Zhi, and then found a random position near the teleportation array, laid down a defensive formation, and prepared to start refining the Great Rejuvenation Pill, because after coming to this northern sea, he always had an unpredictable sense of crisis, so it was better for him to take advantage of the fact that there was nothing to do now and seize the time to make some preparations.

And this can quickly recover from serious injuries, and the Great Rejuvenation Pill has undoubtedly become his first choice. , but speaking of which, Feng Ruo's skills in alchemy are really rusty, except for the fact that he tried to refine some ordinary small elixirs back then, he didn't spend too much energy on this at all, so he suddenly wanted to refine such a high-level Great Rejuvenation Pill today, it was really a little timid!

Of course, Feng Ruo was not messing around, nor was he whimsically ruining alchemy materials.

First of all, alchemy is different from refining, in terms of skills and experience, it is not so strict, because refining requires comprehension of many realms, being able to communicate with the spirituality of various materials, and being able to activate it, in addition, it also requires very clever fire control skills!

But alchemy is different, alchemy does not require too clever fire control skills, what is really needed is the cultivator's own mana and cultivation, that is to say, he can directly use mana to refine! And as long as he understands the relationship between various spiritual grasses and the principles of various mutual restraints, he can achieve the most basic level.

Secondly, Feng Ruo's current cultivation has reached the early stage of Jindan, and it can be said that it can be said that the total amount of mana and the degree of refinement are completely satisfying the needs of alchemy.

Third, and most importantly, Feng Ruo didn't really know anything about alchemy, because for a long time in the past, he had been preparing for alchemy, and he had memorized all kinds of information about alchemy, not only reciting the jade slips in his hand that recorded the key points of alchemy, but also writing down a lot of pills through other means, so the only thing he lacked now was practice, in other words, he was a veritable eye-eyed master!

And in this case, he only needed to practice a few times with his heart, and he would naturally be able to refine that Great Rejuvenation Pill.

After silently reviewing the recipes and key points of refining the Great Rejuvenation Pill, Feng Ruo took out the silver pill that he had obtained in the sea of dead wood that day.

The quality of this silver danding is very high, because according to the description of Qianyun, the owner of this danding is at least a master of the late stage of Jindan, and most importantly, this person's attainments in alchemy are extremely high, which can be seen from the alchemy experience left by this nameless cultivator.

It's just that since he got this Danding, Feng Ruo almost completely forgot it in the corner of the storage belt, and taking it out at this time really made him feel a strange feeling that the pearl was secretly thrown.

After carefully studying this silver pill for a while, Feng Ruo found that although this pill showed a silver light on the outside, when he concentrated on the power of his soul to observe, there seemed to be a faint purple brilliance inside this pill!

"Huh, strange, what does this mean?" Feng Ruo was stunned for a moment, the nameless cultivator did not describe this Danding in the alchemy experience he left, and when he found this Danding that day, because his strength was too low, he also failed to discover the purple brilliance inside this Danding.

"It seems that this Danding is still a bit famous!" Feng Ruo muttered to himself, but he didn't take this purple brilliance to heart, but thought that it might be because of the high quality of this Danding, so after thinking about it casually, he pinched the magic trick and slowly input his mana into the silver Danding, in the next process, his mana will be used as the main force of alchemy, and then little by little he will refine various spirit grasses into the spirit pill he needs.

And as Feng Ruo continued to input mana into the Danding, a faint silver light began to float out from the Danding, looking like a wisp of light smoke.

It's just that what makes Feng Ruo feel strange is that the Danding still maintains the size of a fist and can't be expanded at all, because as far as he knows, the Danding needed for alchemy and the refining tripod used for refining weapons will automatically shrink, and after opening, they will expand rapidly, so that all kinds of materials that need to be refined can be put in.

But the current situation is completely unexpected by Feng Ruo!

"What do you mean? Could it be that this Danding is damaged?" Feng Ruo tried to continue to input a burst of mana into the Danding, but except for the faint silver light like light smoke, the Danding did not react at all!

"That's not right! It is impossible for this Danding to be damaged! Could it be that there is any difference between this Danding and ordinary Danding?" Feng Ruo thought so, but then denied this thought, because if this was the case, the nameless cultivator should have left some descriptions or clues in his alchemy experience, but Feng Ruo was completely sure, the nameless cultivator didn't mention this strange Danding at all, as if this Danding was not his at all!

Encountering this embarrassing thing, Feng Ruo also shouted bad luck in his heart, he always thought that this Danding could still be used, but when he was in the Endless City, he didn't go to buy another Danding needed for alchemy, now it's okay, there's nothing to do!

Secretly sighed, just when Feng Ruo was about to stop transmitting mana to the Danding, a purple light flashed in the Danding, and when the purple light disappeared, only an extremely crisp "click" sound was heard, and the Danding Treasure Cover, which had been tightly closed, actually opened a small gap!

Seeing this change, Feng Ruo was overjoyed in his heart, and at the same time understood the strangeness of this Danding, it turned out that it required a lot of mana to open, as soon as he thought of this, where would he hesitate, and immediately run the magic with all his strength, and send his mana like a surging river towards the Danding that was still the size of a fist!