"Uh...!" Lin Fan was stunned after hearing this.

I was even muttering in my heart: "It turns out that the huge ancient tree is the guardian tree of the Demon King!"

Only at this time did Lin Fan understand why the ancient tree had such a terrifying aura. He guessed that it was the power emitted by the tree guarding the Demon King. He had to admit that this thing was indeed not simple. Even such an ancient tree had such power. It was not a simple tree.

If it were Lin Fan, he would not be able to deal with this ancient tree!

After all, that ancient tree was too big. It was estimated to be a thousand meters in size. Moreover, it was not an ordinary ancient tree. It was probably a thousand-year-old tree. Moreover, according to Lin Fan's understanding, that kind of old tree should be able to change size and then become various shapes.

Otherwise, it would be impossible for Lin Fan to not figure out what kind of ancient tree it was at that moment.

"This...!" Lin Fan hesitated for a moment, then said, "I appreciate your kindness, senior. However, this matter seems to have nothing to do with you. I don't seem to be very familiar with you. I don't know why you would invite me to join your team and let me come in here. This seems a bit against the rules. Besides, I haven't heard that you are a monster. Therefore, this proposal seems a bit ridiculous to me. I don't like being deceived by monsters!" Lin Fan said.

"Hehe, my friend, you have misunderstood. You don't need to be so nervous. Actually, this place does not belong to me. However, this place has some unknown secrets. Don't you want to find the Chaos Crystal? Then, as long as you help me complete this task, I will let you get the Chaos Crystal. Of course, you don't need to help me get the Chaos Crystal. You just need to find a few Immortal Yuan Pills for me, that's all!" said the old man.

"Oh, so that's the case. Then I would like to ask, senior, what is so special about this Chaos Crystal?" Lin Fan continued to ask. This was what Lin Fan was most interested in.

"I can't tell you what's so special about it. Anyway, this thing will definitely be useful to you, so you don't need to ask too much. As for what I want to do with the Chaos Crystal, you don't have to think too much about it. It will not do you any harm anyway. As for whether you are willing to cooperate with me, it depends on you. As long as you can successfully obtain what I need, then you will have a chance to successfully enter the second level!" said the old man.

"The second floor?" Lin Fan asked in surprise.

"Oh, what else do you think? If we could enter this floor easily, we wouldn't stay here. This place is very dangerous!" said the old man.

"Oh, so that's the case. In that case, there's no way I can refuse. Anyway, this is your territory. As long as I enter, I have to help you. So, you asked me to find a Demon King tree. Even if I'm not sure, I have no choice but to go ahead!" Lin Fan said.

"Well, okay, you can leave now. Remember, we'll see each other again when you come into this world. If you don't come in, we'll have no chance to meet again. Moreover, in this world, there are not only magical beasts, but also some masters from the demon world. If they see you, they will definitely attack you. After all, they all want to snatch the Chaos Crystal. So, if you are targeted by them, it will be bad. I don't want anything to happen to you!" the old man reminded.

"Thank you for the reminder, senior. I will definitely pay attention to it!" Lin Fan said.

"Well, go ahead. When you leave, just remember to leave the Demon King Tree behind!" said the old man.

"Okay, senior, don't worry, I'll leave now!" Lin Fan said, and then quickly retreated.

After exiting, Lin Fan did not forget to close the door.

It wasn't that Lin Fan didn't trust the old man, but rather that he was afraid he might cheat. After all, no one would make a promise without a reason. Lin Fan had to be on guard. After all, the old man wasn't someone to be trifled with. If he suddenly attacked, Lin Fan would be in big trouble. So, it was best for Lin Fan to be careful.

After going out, Lin Fan secretly breathed a sigh of relief and said.

"Finally I got out safely, but this mission doesn't seem to be so easy to complete!" Lin Fan muttered.

Although the old man didn't directly explain what was going on, Lin Fan had already vaguely guessed something. After all, those monsters had seemed rather envious, and Lin Fan had sensed their familiarity with the place, as if they knew it intimately. It seemed quite plausible why they would treat a stranger this way. If that was the case, there must be a reason.

However, Lin Fan still wanted to know what the reason was.

So, Lin Fan quietly returned to his cave.

After Lin Fan returned to the cave, he first entered the Five Elements Qiankun Cauldron. Then, Lin Fan began to investigate, wondering if he could get any clues from it.

"Hehe, this place is really interesting. It seems that after not coming here for a while, the Demon Realm seems to have added a lot of new rare things. This time, Lin Fan must find out what the reason is. The Demon Lord actually went to such great lengths to let me obtain the Chaos Crystal, and it seems that he also wants me to help him deal with a mysterious force!" Lin Fan muttered.

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