After waiting for a while, Xuan Yue finally waited for the time for the guard to change shifts, he knew that when the guards changed shifts, it was the time when the guards in the outer courtyard of the Ghost King's Mansion were the most relaxed, so the spiritual power in the dantian was running between his legs, a little between his feet, and with the help of the vast night, Xuan Yue instantly sneaked into the inner courtyard of the Ghost King's Mansion like an owl.

As soon as he entered the inner courtyard, a guard who was guarding immediately discovered Xuan Yue, but fortunately, Xuan Yue found it in time, and immediately released his divine sense to stop the person's shouting, and then the Qingyang sword was instantly unsheathed, and the person's throat was sealed with a sword in the blink of an eye.

After quickly disposing of the corpse, Xuan Yue quickly changed into the man's guard clothes, and with the cover of night, he quickly found the library.

During this period, although Xuan Yue was also interrogated, he was still quick to resolve the crisis, and strode towards the entrance of the library building, and two martial artists from the late stage of the Ten Thousand Souls Realm were holding the door at this moment.

There was an enchantment formation at the entrance, Xuan Yue leaned out his divine sense to check it, and found that the setting of that formation was not complicated.

After having a grasp in his heart, Xuan Yue quickly walked towards the two, and before he could leave, he heard one of them scolding: [Bold, the library building exercises and martial arts are important, and idle people are not allowed to approach. 】

Before the words fell, the other person also said sharply with great vigour: [If you don't patrol the safety of the mansion, what do you want to do here, tell me quickly, which martial artist are you commanding the team? 】

Hearing this, Xuan Yue immediately put on a grinning appearance, and then the blue light in his hand bloomed, and a lot of high-grade spirit stones and pills suddenly appeared, he greeted the two martial artists guarding the door, and replied: [The two eldest brothers, the younger brother is under the command of the ghost boss, just because he accidentally offended someone when he was on a mission in the Yun family, he was just brought back here by the ghost boss two days ago on an errand. Since the junior brother has recently broken through to the early stage of the Ten Thousand Souls Realm, he is thinking about finding a time when there is no one, to see if he can enter the library building and have a chance, maybe he can practice two powerful martial arts techniques! 】

[Ghost boss's subordinates? 】

Seeing that there were doubts in the eyes of the two, Xuan Yue hurriedly sent the two bags of spirit stones bulging in his hand, and along with them, there were also some pills needed for the cultivation of martial artists in the late stage of the Ten Thousand Spirits Realm, [Little meaning, not a respect, please also ask the two eldest brothers to make it convenient!] 】

After padding the weight of the spirit stone in the bag in his hand, the two of them looked at Xuan Yue's gaze and immediately took off their guard, and turned to look greedy and smiled: [Even if you kid has the eye, you know how to honor the two grandfathers with spirit stones and pills. You must know that at this moment, the library is a curfew time, and no one is allowed to enter, but since you know the rules so well, and you are the person in charge of the ghost boss, you can naturally make an exception and let you go in for a little time. Otherwise, with your cultivation in the early stage of the Ten Thousand Souls Realm, even if you come during the day, if you don't have an entry and exit token, I'm afraid it will be very difficult to enter. Hey, hey, hey——]

Satisfied, the spirit stone and the elixir were received into the Qiankun bag, one of them said the rules to Xuan Yue, and the other quickly opened the enchantment seal on the door.

Before Xuan Yue entered the library building, one of them told Xuan Yue: [This brother, after you enter the library building, you can only stay for half a pillar of incense at most, and you must come out quickly. 】

[Half a pillar of incense? 】

Just when Xuan Yue was overjoyed, the person who spoke mistakenly thought that Xuan Yue felt that the time was too short, so he hurriedly explained: [It's not that we are not accommodating, it's just that you also know the recent situation in the Ghost King's Mansion, the Ghost King doesn't know where to catch a guy who loves to set fires, it is said that the person's identity is very unusual, even the Ghost King doesn't dare to kill him easily, so he can only order someone to trap him in the mansion. The man had nothing to do recently, so he went to the library to learn the refining method, calculated the time, and he was about to come after half a pillar of incense. If you let him touch you, and make some more noise to let people know that it was our brother who let you in, the consequences will be unimaginable! 】

After hearing this, Xuan Yue immediately pretended to be a submissive image, and said gratefully: [Thank you for the reminder of the two eldest brothers, the younger brother is grateful, and he will come out in only half a pillar of incense, and he will definitely not cause trouble to the two eldest brothers. 】

After speaking, the two of them said a few more words, and then let Xuanyue enter the library building.

As soon as he entered the library building, Xuan Yue immediately sacrificed the Five Elements Great Array out of the Qiankun bag, and then put the Great Array into operation in the entire library building.

When he was ready to make all preparations for the investigation of the closed outside world, he immediately released his powerful divine sense, and then quickly flipped through every exercise and martial art in the library.

There are a total of five floors in the library building, Xuan Yue quickly collected the first three floors at the bottom, and the first three layers of martial arts and martial arts are countless, covering almost all kinds of martial arts, exercises, alchemy, talisman arrays, poison making, beasts and other fields, although the types are very complete, but the grade is not high.

The only thing that could impress Xuan Yue was a book of Xuan-level high-level martial arts, and it was also a book of poison cultivation exercises.

Without finding the fragment of the Book of Mountains and Seas, Xuan Yue immediately climbed to the fourth floor of the library building, seeing that half a pillar of incense had passed, Xuan Yue couldn't care about searching carefully at the moment, and suddenly more than doubled the coverage of his divine sense.

[Found it-]

After quickly collecting the exercises on the fourth floor, the hard work paid off, and Xuan Yue spent a lot of time, and finally found the [Dongshan Sutra] in a corner of the leftmost qigong practice on the fourth floor.

Compared with the first three floors of the library building, the level of martial arts on the fourth floor is obviously much higher.

Most of the exercises here are above the Xuan level, and occasionally I have seen a few local level exercises, Xuan Yue originally wanted to take them all away, but just about to take them off the shelf, he found that there was a very powerful prohibition on it.

Feeling the spiritual defense above the prohibition, Xuan Yue breathed a sigh of relief, fortunately he didn't act blindly, otherwise once the protection ban on the collection of books in the library was triggered, I am afraid that someone would soon find his traces.

In order not to startle the snake, Xuan Yue didn't dare to provoke right and wrong, and walked to the bookshelf containing the [Dongshan Sutra] like an arrow, the quaint yellow leather scroll was covered with dust, most of the exercises here were not very advanced, so the protection and prohibition were not powerful, so Xuan Yue quickly lifted the protection formation above.

Excitedly picked up the [Dongshan Sutra], Xuan Yue sighed in his heart, if it weren't for the fact that this exercise was just a fragment, I'm afraid it wouldn't have been dusty here.

But after thinking about it, Xuan Yue also felt very stupid, it seemed that no one in the Ghost King Mansion could discover the value of this fragment, otherwise Xuan Yue would definitely not be able to achieve his goal easily when he sneaked into the library today.

Happily putting the [Dongshan Sutra] into the Qiankun bag, Xuan Yue looked up at the staircase in front of her, and looked towards the fifth floor of the library building with great curiosity, Xuan Yue couldn't help but wonder in her heart, since the fourth floor has the appearance of ground-level exercises, the grade of the exercises and cheats on the fifth floor of the library building should not be low.

With such a thought, Xuan Yue was a little moved, but as soon as he remembered that there was a very powerful protection prohibition on the ground-level exercises, he immediately dismissed his intention to go up and take a look.

Calculate the time, just the time of half a pillar of incense.

Quickly hiding his aura, Xuan Yue quickly went down to the first floor, he was about to leave the library, but unexpectedly, a sloppy young man had come to the library at this moment.

Seeing the young man, the two guards immediately frowned, as if they had seen the plague god, and they shouted loudly: [This is the library of the ghost mansion in my realm, and idle people are not allowed to enter. 】

Hearing this, the sloppy young man snorted coldly, a flame quenched out of his palm with a chuckle, and chuckled: [Today I changed two watchdogs that don't have long eyes, since you dogs look down on people, then I don't mind letting you become two roast dogs immediately. 】

As he spoke, the sloppy young man suddenly exuded a momentum, and Xuan Yue felt it very clearly in the library building, it was only the early stage of the Ten Thousand Souls Realm.

But the flame in his hand was extremely hot, Xuan Yue used his divine sense to probe the structure inside, but unexpectedly, there was a pinprick pain in his brain, and in an instant, Xuan Yue knew that the flame in the hands of the sloppy young man was extraordinary.

[Ahh

The guard suddenly sighed, he first glanced at the sloppy young man, and then he put his eyes on the flame in his hand, as if he suddenly understood something, and suddenly stammered: "He-he is the distinguished guest of the Refining Weapon Gate!" 】

After finishing speaking, the two of them scolded almost at the same time, although they knew that the sloppy young man's cultivation was not high, but his background was extremely extraordinary, even the ghost king was courteous to him, and they didn't dare to stop him at this moment.

[Wait a moment, our brother will open the ban!] 】

【Refining Door? 】

Xuan Yue, who was hiding in the library building, held her breath and concentrated, hearing the three words of the refining door, and thinking of the sloppy young man outside the door and the inexplicable flame burning in his hand, Xuan Yue was suddenly surprised and said secretly: [Brother Ouyang Zi——]

【Bang——】

kicked open the door of the library building, and the sloppy young man scolded and said: [Even if you still have a little eyesight, if it weren't for the ghost king's promise, as long as I help him successfully refine the natal divine weapon, he will promise to release people, Lao Tzu is not willing to come to this broken library every day to study the scriptures! 】

There was another bang, and the door of the library was slammed shut, and the two guards at the gate suddenly breathed a sigh of relief, and after a while, they only heard them scold angrily: [Damn, if he wasn't a person from the Refining Weapon Gate of the Imperial City of the Earth Realm, with his cultivation in the early stage of the Ten Thousand Spirits Realm, Lao Tzu would have slaughtered him a long time ago! 】

[Shh, don't let him hear this, the brothers in the Ghost King's Mansion who let the flames of his palms burn to ashes are not one or two, even the Lord of the Ghost King turns a blind eye, you and I are just ordinary guards, don't dare to offend this big Buddha! ] 】

Speaking of this, they suddenly thought of Xuan Yue, who had entered it before, [Oops, I suddenly forgot one thing, that kid is still secretly learning martial arts inside, in case you run into him, ——————what do you say]