After thinking through, she didn’t declined, they still could go a little deeper after all, "Fine, but only up to 1,000 kilometers, no more."
Lin Feng nodded, he was fine with it. He just wanted to see how much the effect of the Darkness Law increased by distance, after that he could figure out exactly where even the air would be enough to kill cultivators like him.
Lin Feng again climbed on the sword as they made their way inside the Central Region.
Xie Ruyue was flying very high and fast, so Lin Feng wasn’t able to see the land clearly. He was only able to see big mountains, forests, or ponds. Occasionally one or two wide rivers also passed by.
As time passed, he began feeling that the air was getting heavier and heavier, although it wasn’t a problem for him as his body itself purified all the darkness.
Gradually, Xie Ruyue slowed them down and landed on a small hill, "This is enough, how are you feeling?"
Lin Feng looked around the hill, not a single cultivator was in sight, "Darkness doesn’t affect me, senior sister, my constitution is powerful enough to purify it easily."
He was sure she would understand it, she herself had a good constitution which definitely protected her from darkness too.
He wondered what the name of her physique was.
Xie Ruyue nodded, she wasn’t surprised. This was the reason she brought him here, "500 kilometers is the limit for Foundation Establishment realm, if they get deeper than that, then in half an hour they might die out of an untreatable illness.
As for 1,000 kilometers, it is the limit for Core Formation realm cultivators."
Lin Feng could feel quite a bit of corruptive darkness qi surrounding him, and no doubt if he didn’t have his physique, he would be affected badly.
This was the strength of beings who could destroy worlds, even when most of the darkness was held in the spatial cracks, leaving only a small amount out, it was enough to affect the whole region.
"Senior sister, are any spirit herbs nearby?"
Although this area might not be touched by cultivators, spirit herbs didn’t grow everywhere. They needed specific conditions.
This hill was perfect too, it might contain some spirit herbs on it. Usually, if one spirit herb grew, it spread its seeds nearby, creating a lot more of its type.
Xie Ruyue swept her spiritual sense over the mountain and nodded, "There are more than enough for you to complete your mission, junior brother, also do it fast, we should not stay here longer."
She was afraid of meeting any stronger cultivators here, if someone stronger than her decided to attack them, then things would go ugly.
Although the chances were low as those cultivators directly went far deeper from the straight line of Yunfeng City, the possibility of it happening was never zero.
"Then how about you just pick those herbs and let’s go back," Lin Feng smiled and said, this time she might agree.
As expected, Xie Ruyue herself was thinking about it, she disappeared without saying anything, and not even a minute passed before she came back, "Here."
Lin Feng took the herbs and put them in his ring, with this his mission was complete.
"Should we go back now?" Xie Ruyue asked.
Lin Feng only wanted to feel the darkness qi here, so he wasn’t against going back, but he wasn’t going back to the sect yet, "Senior sister, if we bring resources and pick the mission regarding it from the mission pavilion and submit it, then it will work, right?"
Xie Ruyue nodded, "Yes, you just need to submit the exact number required for the mission... although no one usually does it like this, there were many disciples picking missions, if that mission is picked up, then you have to sell those resources at normal value."
Missions usually paid higher for the same resource, that’s why disciples did it anyway.
"Don’t worry, senior sister, we are going to hunt Crimson Vein Serpent beasts, that is one mission which will always be available," Lin Feng wanted to see if there was something he was missing.
"Junior brother, those missions are meant for Soul Sea realm or above cultivators, are you sure you can hunt them yourself?" Xie Ruyue knew that he was hoping for her to kill some Crimson Vein Serpents, but she liked teasing him now and then. After all, in the stall, he was the one who did it.
"Senior sister, do help me on this one... I will pay you by becoming your partner, how about it?" Lin Feng spoke with a saddened face, his expression looked like he was about to sacrifice himself.
Xie Ruyue looked at him speechlessly, before she spoke with a deadpan expression, "Junior brother, we are 1,000 kilometers away right now, if you started running today, you might reach the sect in three days... if I were you, I would have started running by now."
Lin Feng gulped in trepidation, "It was only a joke, senior sister, no need to take it that seriously."
"Tsk... Let’s go," Xie Ruyue snorted and brought her sword out again.
Lin Feng sighed and climbed up, "By the way, senior sister, catch a Crimson Vein Serpent spirit beast, I am curious why the sect is in so much need for them."
In fact, he could even ask Elder Yan about it, he was an alchemist, it was genuine to get curious after seeing those missions about why the sect was interested in these vitality resources.
Xie Ruyue nodded, she herself was curious, "Alright, one of the areas where these snakes are found in abundance is not far from Yunfeng City, so we can catch some easily."
Lin Feng nodded, he had already tried all the combinations he could think of... but maybe something was different, were these snakes evolved differently in this world? He had to see one to find out.
They flew up again...
...
After a few minutes, they were above Yunfeng City, Xie Ruyue didn’t stop and kept moving until they reached the base of the mountain range where it started.