The old man had been resting at Lu Ming's home for a few days, and now, he was no different from an ordinary person.

"I'm leaving tomorrow. Thank you for taking care of me during this time." The old man slowly opened his eyes and let out a long breath. It was a bit turbid, and there was a hint of blood in the air.

Lu Ming who was reading the《 Introduction to Formation Techniques》 at the side turned his head, his heart had more traces of admiration, the more he read, the more he understood, the book seemed simple, but its contents were vast like the ocean.

I will not be able to keep you here any longer, but I believe that we will definitely have a chance to meet again in the future. At that time, we will have a good chat. Lu Ming stood up and faced the old man. Although he had played with the old man before, his heart was still filled with respect towards the old man.

The old man smiled, then said, "You are the most talented young man I have ever met, but I have a word for you."

Lu Ming stood there solemnly, bowed and said, "Please speak, old sir."

"Cut off your merciful heart."

When the old man saw this, he could not help but laugh and say, "In the future, you will encounter a lot of unfortunate things, but time is of the essence. If you meet them, you will be bound by them, and will be stopped in your tracks."

"But old mister, you don't need to directly cut off your merciful heart, do you?" Lu Ming asked.

With that, the old man stood up and was about to leave, but he suddenly stopped. He let out a long sigh, turned around and looked at Lu Ming, and said, "I have hesitated for a long time, whether I should teach you this method or not. It seems like I should just hand it over to you now.

With that, the old man drew something in the air before him with his right hand.

If a normal person were to draw something needed by a formation, many of the steps would be somewhat complicated. However, the old man only used a finger as a brush and the air as the cloth to draw a formation.

"What is this?" Seeing the extremely exquisite, snowflake like array formation that floated in front of Lu Ming, Lu Ming asked with suspicion.

"There's a detailed method to create a formation here." The old man looked at Lu Ming, and said, "You saved me twice, and this can be considered as my repayment for saving your life."

The old man directly teleported himself away using an array formation. It was as if Lu Ming heard the old man's furious voice from the horizon, "You ran away again!"

Lu Ming returned to his room and sat down cross-legged, flipping through the book on his lap. In this book, there were only four big words on the cover, there was nothing else.

Looking at the small golden array in his hand, Lu Ming slowly concentrated his consciousness inside, but he discovered that there was actually an extremely vast world inside. An Ancient War God stood between the heaven and earth, holding a giant axe in his hand, with his back facing Lu Ming, and his figure was extremely mighty.

To the ancient war god, there was a green grassland behind him. This was a paradise filled with countless creatures, like birds chirping and flowers singing. However, in front of the ancient war god, there was a sea of smoke and wails, and there was a war of fire everywhere.

Lu Ming didn't know where this was. It seemed that the Ancient War God had used his own body to block the flames of war, protecting the peace behind him.

But at this moment, an existence similar to him suddenly appeared in front of the Ancient War God. The two of them were fighting against each other, but very quickly, this scarred Ancient War God was unable to defeat him and was dragged under his horse.

Lu Ming watched on helplessly as all of this happened, but he was powerless to change it. He knew that it was very likely to be an impression that he could not change what had happened long ago.

However, he did not know when exactly this happened.

"You all are scum. If you dare to offend us, we will definitely exterminate you!"

A huge sound suddenly rang out between the heavens and the earth. It was like the buzzing of a bronze bell, reverberating between the heavens and the earth.

Suddenly, a ray of light flashed in the sky, and a great sword appeared out of nowhere, slashing through the black clouds in the sky and sliding towards the ground, forming a gigantic abyss at Lu Ming's feet.

This abyss was far too wide. Below them were monsters shrouded in mist that were roaring nonstop. However, they were unable to step foot into the abyss and could only watch from the other side.

An enormous door of light suddenly appeared in the sky. As the door opened, the sound of war drums rang out. A group of war gods wearing cloaks came rushing over. Countless heavenly soldiers stood behind them as they joined the battle.

They killed to the point where the sky and earth turned dark, and blood rained down in all directions.

"Foreigner, I am Kuafu from the Ancient War God. I have passed on the law to you, I hope you will remember this."

As Lu Ming watched all of this, his heart was extremely shaken, this was most likely something from the Primordial Era or even the Ancient Era, just at this moment, the voice suddenly rang in his ears, following that, a ray of light flashed past his mind, and Lu Ming returned to reality.

Then, he looked at the small formation in his hand, which had disappeared.

The scene was extremely lifelike, every detail was flawless, Lu Ming suddenly thought of a possibility, could it be that the old man had experienced this war, no, it was impossible.

The moment this idea appeared, Lu Ming shook his head and threw it out of his mind. It should be something from countless of years ago, how could this old man have experienced it, it was impossible.

A piece of information suddenly appeared in Lu Ming's mind, causing him to suddenly understand, that the elder had left him with the teleportation circle before he left.

This formation is a cave that I accidentally discovered a mysterious place and carved on the mountain wall. There are a total of 81 paintings, and by superimposing 80 paintings on top of each other, it becomes this top-secret formation. Unfortunately, there are some flaws in the last painting, so the formation was able to succeed in the end.

Soon after, the 81 pictures appeared in Lu Ming's mind. Lu Ming looked at them one by one, if it was him, he probably would not have thought that the 81 paintings would be combined, which also meant that the old man was a genius himself. Otherwise, who would have thought that it would be like this.

This array formation already existed in Lu Ming's mind. Lu Ming could not casually draw it like the old man, so Lu Ming obediently took out some materials from his spatial ring.