The 'Spirit Communication Formation' was something that Fang Zishu had engraved according to the records in the ancient books. According to the records, its use was to act as a bridge.

A bridge linking the spellcaster to the saved.

What Fang Zishu needed to do now was to complete the 'Spirit Communication Technique', and then use the red thread and the completed 'Spirit Communication Formation' in front of him to search for the lost soul of the Professor Xu, and then use the spirit energy accumulated within the 'Spirit Communication Formation' to cause the lost soul of the Professor Xu to materialize.

Finally, he used the "red thread binding" method to bind the lost soul in Professor Xu, and then used a forceful method to force the soul to return into Professor Xu's body. This was the so-called "Spirit Summoning Technique".

Of course, to the caster, which was also Fang Zishu, such a method was extremely dangerous.

This was because the Spirit Communication Technique that Fang Zishu had used was what the common people called the 'Soul Outgoing Aperture' technique.

Everyone knew that the soul was the most important thing to a human, and that unless a major change occurred to an ordinary person, the soul would not be able to leave the body easily. Although Fang Zishu was a Arts expert and could also sense the existence of the soul, he was unable to guarantee that he would not encounter any attacks while using the 'Spirit Communication Technique'.

For example, Fang Zishu himself, this place was the front door to the Monarch of the Northern Wei Dynasty's third tomb.

It has to be known that the Northern Wei had a history of more than a thousand years. To use the Spirit Communication Technique in a place that was filled with Yinqi, there was a high chance of encountering demons or ghosts that were still alive.

This also meant that after Fang Zishu's soul left his body, if he were to be attacked by the Yin Beings or be devoured, his outcome would not be any better than the Professor Xu who lost his soul.

If it was any other time, Fang Zishu would never have set up a 'Spirit Communication Formation' in this place, but now that the situation was urgent, Fang Zishu did not want to miss the chance to save the Professor Xu because of his own delay.

Whoosh!

Fang Zishu took a deep breath, suppressing all the distracting thoughts in his heart.

After that, Fang Zishu nodded at Qi Sanbiaozi and said, "Qi Sanbiaozi, please do not forget what I told you to do." Qi Sanbiaozi was also aware of the severity of this matter. He was no longer as mischievous as before, and heavily nodded his head. "Brother Fang, you can rest assured that I will definitely follow your request by holding onto the 'Gold Silk Red Thread Copper Coin Sword' and protecting your body, protecting your safety ~"

"Then I'll leave everything to you!"

After Fang Zishu finished speaking, he immediately extended both of his hands, and under the gaze of Da Zeng and the others, his ten fingers intersected and interlocked with each other.

During the time his fingers were moving, Fang Zishu's mouth did not stop as he spoke a long string of mysterious words that no one could understand.

It was strange.

Just as Fang Zishu was thinking. The moment this golden light appeared, Qi Sanbiaozi felt his entire body turn cold, as if something had walked past him. Through Fang Zishu's previous instructions, Qi Sanbiaozi knew that the coldness that he had just felt should have been proof that Fang Zishu's soul had successfully left his body.

"Brother Fang's soul should have successfully left the body. You two better light up the bonfire, these bonfires are an important barrier to guide Brother Fang and his soul to return. You two better watch carefully!"

Hearing Qi Sanbiaozi's words, Pang Dun did not dare to have the slightest bit of carelessness, and stood guard by the two bonfires with Da Zeng alone. He did not dare to slack off at all, as he was afraid of delaying the return of Fang Zishu and Professor Xu's souls.

It had to be said that Qi Sanbiaozi's perception was very strong.

Just now, when Qi Sanbiaozi felt cold all over his body, Fang Zishu's soul just happened to have left his body, but Qi Sanbiaozi was still flesh. In reality, under the condition of not using the willow leaves to moisten the rootless water and wipe the cow tears away, he had basically seen Fang Zishu.

Although Fang Zishu was well-versed in the 'Spirit Communication Technique', he could not let his soul drift outside for a long time. Firstly, he was afraid that it would be difficult to deal with the evil spirits and demons, and secondly, because of Fang Zishu's current cultivation in the Dao arts, he could only support his soul for a short period of time before it left his body.

This also meant that Fang Zishu had to return to his body within the time it took for an incense stick to burn, regardless of whether he could find Professor Xu's soul or not. Once that time limit had passed, it would be extremely difficult for Fang Zishu's soul to return to his body.

Of course, this was the best situation, if Fang Zishu was unable to find and guide the lost soul of the Professor Xu to return to his body within the time it took for an incense stick to burn, then the 'Spirit Summoning Art' this time would definitely fail.

Now, what Fang Zishu needed to do was to use the spirit energy gathered in the Spirit Communication Array to find the Professor Xu whose soul had left its body, and then use the red thread soaked in cinnabar to wrap around the ankle of the lost spirit energy.

Using a 'traction' method, he brought it back into the body of the Professor Xu in the 'Spirit Communication Formation'.

"Professor Xu, Professor Xu!"

Fang Zishu who was in his soul state looked at the white and boundless world in front of him, his heart was extremely anxious.

But there was nothing he could do about it, under the situation where he didn't have the ability to sense blood relations, the only thing Fang Zishu could do was to shout, again and again.

Time slowly passed, Fang Zishu did not know how many times he had called out 'Professor Xu', but the 'Spirit Intelligence' that was lost in the Professor Xu seemed to have disappeared from the world, no matter how hard he tried to call out, he could not get a response.

"Crap!"

Under the state of his soul, when Fang Zishu saw that around two-thirds of the incense had been burnt, the anxiety in his eyes grew even stronger.

If within five minutes, he still could not recall the soul that was lost in the Professor Xu, then he must return to his body.

"Professor Xu, Professor Xu!"

"Professor Xu, Professor Xu!"

Fang Zishu began to call out the Professor Xu's name again and again.

However, there was still no response from his surroundings.

"Sigh, maybe this is fate. I, Professor Xu, have already tried my best, I hope you understand!"

Beneath the soul body, Fang Zishu sighed, looked at the white world, and then turned around.

The instant he turned around, a status cry sounded out.

"Hm."

This sudden cry was very soft, but Fang Zishu who was in his spiritual body could still hear it clearly.

"Professor Xu? Professor Xu? "

Fang Zishu habitually shouted out.

Fang Zishu's eyes searched the vast and white world. Under his search, he quickly saw the trembling Professor Xu in the crack of the mountain wall, "Professor Xu, don't be afraid. I'm Fang Zishu.

Fang Zishu smiled as he tried to make his voice as gentle as possible. He knew that at this moment, the soul of the Professor Xu, under the stimulation of being separated from its body, would definitely be incomparably terrified. If he scared it away, it would be extremely difficult to find the lost soul of the Professor Xu.