"The other party is an enemy rather than a friend. Are you sure if you meet childe Lu?" after a long time, I saw this group walking away in the ruins. Weng Zhihan lowered his voice and said.

"There are too many people on the other side. These are not the miners with little combat power in the mine. If I'm right, I can only protect myself at most." Lu Xiaotian frowned.

"If so, then we'll have to take a detour," said Weng Zhihan. "I don't know how these people got the news that there are treasures here. It seems that the little old man has stayed in the mine for nearly 20 years, and great changes have taken place outside. But the little old man knows a shortcut. Childe Lu, come with me."

With that, Weng Zhihan took Lu Xiaotian interspersed among the ruins, and soon came to a stone pillar that fell to the ground. Weng Zhihan laboriously removed the stone column and revealed a small hole high inside. There were cyan stone steps below. It looked like an underground secret road.

They entered the secret road one after another. Weng Zhihan carefully put down the stone column and blocked the passage.

"Yes, the blood spirit earth fire is in the underground palace. As long as there is the blood spirit earth fire, the little old man can refine the magic weapon and bind the demon rope for childe Lu. After refining, the demon rope will come out. No matter how many mole ants come, they will not be childe Lu's opponent." Weng Zhihan clapped his hands and said with a relaxed face.

"I hope so. It's not too late. Let's go quickly." Lu Xiaotian nodded and showed a rare smile in front of Weng Zhihan.

"OK." Weng Zhihan answered and walked on the dusty blue stone steps. In the twinkling of an eye, it was several feet away.

This underground palace is quite large, full of a large number of secret rooms, some altars, and the dried and solidified blood around the altar. It seems that this underground palace was not calm before.

After traveling for more than an hour, a breath full of blood and heat came to my face through the narrow and curved secret road. Took a turn. Impressively, it is another altar, but different from before, there is a three legged giant tripod on the altar here, and each white tripod has a bloody ferocious and lifelike tiger shaped animal head.

On the tripod, there was a bloody flame burning. It seemed that it would not go out. The blood and heat just now came from this flame.

"This is the blood spirit earth fire. It's still there." Weng Zhihan turned around with a look of intoxication on his face, "Young Master Lu, I need a lot of spirit stones to replenish my mana, and there are at least ten middle-grade spirit stones in these spirit stones. Give me all the refining materials. In addition, don't be disturbed by others during the refining process, otherwise I'm afraid I'll give up all my skills before the meeting. It's quite secret here, but if the previous group of people find them, I'll have to resist one or two Until the magic weapon is refined. "

"It's all ready. You can refine it safely." Lu Xiaotian nodded and threw the storage bag containing these spirit objects to Weng Zhihan. He was not sloppy. After taking out the spirit objects, he sat cross legged to one side to protect Weng Zhihan's Dharma. The blood spirit earth fire is a rare spirit fire, which is the same level as the earth lung fire, but ordinary friars can't carry it at all. Just I don't know which powerful friar actually put a ball of blood in this three legged giant tripod Lingdi fire moved here. It seems that this tripod is not an ordinary product.

Weng Zhihan took out the spirit objects one by one, and then took out a section of blood eating rattan and threw it on the tripod. Under the fire of the blood spirit, the whole section of blood eating rattan impurities were quickly burned, and after a moment, only a wisp of light silk with some sharp spikes was left.

That's the skin of the blood eating vine, but after being burned by the blood spirit earth fire, most of the excess impurities are burned to ashes, and the rest are extremely tough. However, this is only the first step of quenching. There will be a long quenching later. Moreover, such a wisp of light silk is far from weaving into a rope.

Lu Xiaotian prepared a large number of blood eating rattan, which need to be quenched like this.

Refining tools is a long and impatient process. Many unusual spirit swords have to be forged repeatedly by monks.

The demon binding rope eliminates the forging process, but it needs to extract strands of light silk from a large number of blood eating rattan, and ensure that each strand of light silk is baked at the same temperature by the blood spirit ground fire, otherwise it will affect the overall quality of the demon binding rope.

For ten days and ten nights, Weng Zhihan only rested for one hour every day, and then all went into intense refining. Ten days later, all the blood eating rattan were incinerated.

Weng Zhihan also prepared the spirit liquid from a large number of herbs provided by Lu Xiaotian. He soaked ice silk and blood eating rattan silk in the spirit liquid for three days. At this time, Weng Zhihan rarely had time to rest. Regardless of the poor conditions, he fell to the ground and fell asleep.

As soon as the third day came, Weng Zhihan baked the two kinds of light filaments with the blood spirit fire and soaked them in the spirit liquid for more than ten times. Only then did he weave these strands of light filaments into a rope. In the middle, Weng Zhihan's hands were bloody with fine spikes on the rope. These spikes were inherited from the blood eating vine. If Lu Xiaotian hadn't provided a lot of tonic pills, I'm afraid Weng Zhihan Zhihan, even a monk in the later period of Qi refining, had already lost his blood.

It took more than ten days to weave the rope, and we had to finish the last sacrifice on the blood spirit earth fire.

It took nearly three months before and after. During this time, Lu Xiaotian also secretly erased the smell of the old man in black robe on the black sword. He refined the magic sword.

"Today is the last day. In a few hours, it can be refined by binding the demon rope."

Weng Zhihan's face was pale because of his long-term hard work and excessive energy consumption, but his spirit was very excited. Because this upcoming magic instrument rope was refined from him.

"Damn it, the underground palace is really complicated. I haven't found it after looking for it for so long."

A few hours later, a small sound of footsteps and swearing came from the other side of the secret path. Lu Xiaotian frowned, which was the direction of entering the secret cave from outside the cave.

It turned out to be this idea. Lu Xiaotian was thinking about it these days. At this time, he looked cold on his face and looked at the demon binding rope condensed by blood spirit earth fire on the three legged tripod. At this time, there was a strong smell of magic tools, but it was still a little short of the final success.

"Childe Lu, it takes at least one column of incense to refine the magic weapon. Don't interrupt it, otherwise all your previous efforts will be wasted!"

Weng Zhihan said with great difficulty. Because he was a little close to the blood spirit fire and had been refining tools for a long time, he was sweating heavily, and his clothes were wet and close to him. Weng Zhihan looked very ugly because he was disturbed by the outside world.

"I'll stop them." Lu Xiaotian narrowed his eyes and got up and walked out of the secret room.