After chatting with his senior sister for a while, and after relaxing for a while, Song Yushan continued to practice in retreat.

From a single five-element spell to a double five-element spell, the difficulty has increased significantly.

When learning the Yin and Yang Stealth Technique, Song Yushan felt a little struggling.

But after experiencing the good use of the invisibility talisman, Song Yushan couldn't give up the yin and yang invisibility technique.

The Yin Yang Stealth Technique is more effective than the Invisibility Talisman.

From the beginning to the small level, you can hide the physical body, and when you reach the perfection, you can hide the soul.

In other words, with the Yin Yang Stealth Technique, not only can you not see her with the naked eye, but the ghosts can't see her either.

In the middle stage of the Condensation Realm, the soul can be separated from the body, and it can also be used to hide the soul.

This effect cannot be replaced by the current supernatural powers of the Inheritance Academy.

So even if it is difficult to learn, Song Yushan has to grit his teeth and learn it.

This study, just three years of study, when the Yin and Yang stealth technique was completed, Song Yushan's Dan Fu Array all four grades were tested in the assessment room, and the weapons and martial arts were all practiced to the tenth door, and the cultivation also advanced to the middle stage of the condensation realm, and the soul could leave the body for a short time at night.

Song Yushan was about to accept the inheritance of the Five Elements Escape Technique, and when she continued to study, she received a letter from Xiao Yi riding a pony across several counties.

"The number of male water ghosts in Qinglong Creek has surged, all of them have been sucked dry, gnawed flesh and blood and died, and some ghosts are not even full of souls, according to the surviving water ghosts, the murderer is a green snake demon with white spots on his forehead, suspected to be Qingying."

When he saw the word "Qingying", Song Yushan frowned.

Memories of years ago come back to me.

Her mentor, Mother-in-law Hua, also dreamed of cultivating successfully, accompanied by demon pets, and walking to the end of the world with a stick.

However, because of the dissuasion of demon pets from falling in love with mortals, at the advanced juncture, they were hurt by trusted demon pets, their life span was lost, and their cultivation was no longer saved.

In the end, he left the division and spent the rest of his life in a small remote county.

When Granny Hua was delirious before she died, she was still chanting the name "Qingying".

Qingying's appearance characteristics were still found out by Song Yushan from her mother-in-law's cultivation experience.

She has always wanted to see if this Qingying, who turned her back on everything and had the courage to pursue love, had a good death.

Many years ago, she sent a reward at the Netherworld Bookstore, wanting to use the ghost's eyes and ears to find Qingying, but there has been no news.

Song Yushan wanted to think that Qingying had quietly died somewhere, but he didn't expect that at this time, news suddenly came.

"Qinglongxi ......" Song Yushan took out the map and confirmed.

She really remembered correctly, this Qinglong Creek was in the southwest of Linjiang County, not too far from Qingshui County, which they had passed by when they came to Qingzhou City before.

Qinglong Creek is half in Linjiang County, half in Sanhe County, and finally joins the Great River.

She was going to go to the Inheritance Academy, but she immediately changed her direction and walked outside Qingzhou Academy.

Whether the snake demon was Qingying or not, she had to go back and see.

Fortunately, Xiaoyi often sends letters back and forth between the two places, and the underworld route from Qingzhou City to Linjiang County is already very clear, and it will not take a long time to lead the way and walk the underworld.

Before leaving, she only sent a message to her senior sister about the matter.

After leaving the academy, Song Yushan took out the black horse and the paper carriage, led the way by Xiao Yi, and went to the nearest entrance of the netherworld.

This time she was alone, and the carriage was even more spacious, so she could lie down.

But it's also boring, as soon as she leaves the Inheritance Academy, except for what she has learned, all the other inheritances from the Inheritance Academy automatically disappear from her mind.

So in the carriage, she couldn't continue to cultivate.

Moreover, the environment of the netherworld is not suitable for cultivation.

Fortunately, Song Yushan has already exchanged the inheritance of the Four Rank Dan Master, Fu Master, Instrument Master, and Array Master from the Jade Seal Space, and you can take a look at the time to pass the time.

At the beginning, it took nearly four years to get from Qingshui County to Qingzhou City, and when she went back, she rested in Yangshi during the day and traveled at night, and it only took seven nights to arrive at Qinglong Creek near Qingshui County.

Although Qinglong Creek is called "Creek", it is actually a big river, and there are several villages living near the river, and the domestic water comes from Qinglong Creek.

When Song Yushan arrived, the sky was not yet bright, and the sound of crying was heard in the distance.

There was an old woman, a young woman and a little girl of seventeen or eight years old, dressed in vegetarian clothes, crying and putting river lanterns, as if they were paying tribute to someone.

And in the river in front of them, there was a male ghost of the same age as the young woman, half of his body was blurred with flesh and blood, and he was looking at them with a sad face, and there were blood and tears in his eyes.

Song Yushan used the Yin Yang Stealth Technique to hide her physical body, so the three of them did not notice her approach.

Only the male ghost in the river, sensing that a stranger was approaching, was angry and rushed over at once.

"Yoo Yong! Licentious! This is the Song shopkeeper! ”

Before Song Yushan could make a move, beside her, the manager of the Qingshui County Yin World Book Bureau who guided her scolded the ghost.

The steward has been an old ghost for many years, and the powerful ghost power pressed over, which suddenly dispelled the resentment on the male ghost and regained his consciousness.

"Shopkeeper Song? Song shopkeeper! After Liu Yong realized who it was, he knelt down straight at her: "Ask the shopkeeper Song to take action and get rid of the man-eating demon in this stream!" ”

The steward explained in a timely manner: "The shopkeeper, his name is Liu Yong, he is Langzhong in Xiaohe Village by Qinglong Creek, he originally had a beloved wife and young daughter, and his life was very happy, but not long ago, when he went up the mountain to collect medicine, he was dragged away by a green snake, brought to the water, and bit off his neck. The news that the green snake demon had a white spot on his forehead was what he told me. ”

As he spoke, more water ghosts floated out of the river.

Some of them lost their minds and were confused, some of them had mutilated souls, missing arms and legs, and some even had only a wisp of remnant souls, on the verge of being scattered.

"These are also the ghosts who have been buried in the belly of a snake in Qinglong Creek in the past year." The steward said.

Song Yushan looked at these miserable water ghosts, and felt a little angry in his heart.

These ghosts, without exception, are all young and middle-aged male ghosts.

In one year, by Qinglong Creek, so many families have lost their pillars of their homes, and this debt is too great.

Song Yushan didn't suspect the ghosts, the wound bite marks on their souls were obviously not made by ordinary beasts, and the soul body was miserable, and the soul was also injured, so only the demon could not only cause a terrifying wound, but also seriously injure the soul at the same time.

Rao is Song Yushan, who has always treated demons equally, feels that this green snake demon can be called the word "demon", which is too cruel.

After many demons open their minds, even if they are not educated by the moral concepts of the human race, they will avoid feeding on things with wisdom, but this snake demon is specially looking for someone to start, and if the snake demon is not removed, the people by the Qinglong River will never have peace.

Regardless of whether this snake demon is Qingying or not, Song Yushan has to behead it to comfort the undead in this river.