After connecting the phone, Tang Xingchao's voice came from inside.

"Mr. Lu, I've asked you to send it to you in silence. Have you received it?"

Lu Tianlong said, "yes, but this is your heirloom. It's so valuable..."

Before he finished speaking, he was interrupted by Tang Xingchao.

"What's valuable? Compared with the whole Tang family, it's too insignificant."

"But I didn't have time to talk to Mr. Lu yesterday, so I'll call you now."

"To tell you the truth, although this is our Tang family heirloom, but I'm really sorry, I don't know what's in it."

"Even though I tried many ways, I couldn't open the wooden box."

"It's just that the Tang family has ancestral precepts, and only those with great ability can achieve it."

Tang Xingchao apologized on the phone. It turned out that he had never opened the wooden box, even for generations.

Talk for a while and hang up the phone. Lu Tianlong is more and more curious about the wooden box.

He tried all kinds of methods, and even wanted to destroy it by violence. But surprisingly, although the wooden box looked ordinary, if powerful means were really used, a magical force would be generated on it, which would directly devour the external forces.

"Why don't you try other methods, such as the power of dragon veins?"

The family treasure of the Tang family comes from the Qinling Mountains. With the introduction of xuanyuanyun yesterday, Lu Tianlong's mind flashed this idea.

Then he mobilized the power of the dragon in his body and slowly poured it into the wooden box in front of him.

Amazing things happened!

"Pa!"

A crisp sound, it seems that the wooden box's Secret lock pops open.

Lu Tianlong is trying to lift the lid of the wooden box. He opens it without any effort!

In the wooden box, there is an iron book!

In fact, Lu Tianlong did not know what material the book was made of. It was very heavy in his hand, as if it was a thousand catties.

"I don't even know this material."

As he rubbed his finger on some mottled books, Lu Tianlong murmured, feeling that it was more like an ancient meteorite.

The iron book has seven pages.

Lu Tianlong looked at each of the seven pages of the iron book. There were some strange lines on it.

Look carefully, each page is actually a three-dimensional pattern.

Just like the picture of three places, there are mountains, rivers and plains on it. People can see the past at a glance and have a three-dimensional picture in mind.

"Every page is a map."

Lu Tianlong looked through it and thought in his heart.

However, in the middle of each page, there is also a black stone the size of a finger belly.

"What does this stone mean?"

Lu Tianlong was a little puzzled. He carefully observed the black stone, which was almost in the middle of each page, but it was not completely similar.

Comparing the positions of these seven stones separately, we can see if there are any rules. It seems that they were put up at will.

"What's the situation?"

Some of Lu Tianlong's brothers in law are confused. This is the Tang family's heirloom. According to Tang Xingchao, it is of great value.

In addition, xuanyuanyun also said that the 200 year old man in the mountain also said that to open the ancient imperial mausoleum in Qinshan mountain, the family heirloom of the Tang family was needed.

But how does it work?

Now holding these seven pages of iron book in my hand, I just feel very heavy. Besides, there is nothing magical about it.

"Shadow, go to find the brothers, and Xuanyuan cloud, call together." Lu Tianlong thought of a way, but there was no result. He immediately ordered.

Soon, qinger led many brothers into the hall, Xuanyuan cloud also ran in the first time.

Lu Tianlong described what had happened just now, and then asked them to analyze the seven page iron book respectively.

It's a pity that all the Zhan long brothers, including Qing'er and Wen Tianhao, are as confused as Lu Tianlong just now. They have no idea what the seven page iron book means.

Some people say that this is not the key. Find the entrance to the ancient place and insert the iron book in it?

Some people say that it may be sealed and needs magic power to untie.

In a word, people discussed, analyzed and tried, but there was still no effect.

Finally, Lu Tianlong can only put his eyes on Xuanyuan cloud, with some resentment in his eyes.

Xuanyuanyun had been locked in the back and didn't dare to speak. Now seeing Lu Tianlong staring at himself, he was in a hurry to cry.

"Mr. Lu, it's all my fault. I shouldn't have killed the old man in the mountain."

"When it's done here, I'll go and guard the tomb for him for a year, no, a year and a half..."

This guy was also racking his brains just now, but he got nothing from qinger and others. Now look at Lu Tianlong staring at him, he immediately takes the lead in admitting his mistake.If the old man in the mountain is still there, maybe we can get some useful clues.

However, there is no if.

"Forget it, or call Tang Xingchao. No, let him come directly." Lu Tianlong pondered.

After all, this is the Tang family's heirloom, which may provide some clues.

After the phone call, not long after, Tang Xingchao came to the hall. Tang silently followed him with his head down.

Seeing that the wooden box was opened, Tang Xingchao was also very excited. While carefully observing the iron books inside, he praised Lu Tianlong with no parsimony.

However, Lu Tianlong didn't listen to these compliments, so he said his doubts just now to see if Tang Xingchao could provide some clues.

"What is the use of these seven pages of iron books?"

After hearing this, Tang Xingchao was stunned.

Then he laughed bitterly and shook his head. "Mr. Lu, I really don't know. We haven't opened this wooden box for generations."

"I didn't even know it was in it."

"I have looked through all the ancestral books and records a long time ago, and there is no record either. Only the ancestors of the Tang family once left a sentence. Those who are not capable can't open this box."

It turned out to be very depressing.

Originally, Lu Tianlong was still holding a very big hope, and wanted to use the Tang family's heirloom to explore the ancient land in Qinshan mountain to see if it was the imperial mausoleum of the eternal emperor and whether it had dragon veins.

But now, the Tang family heirloom is of no use to him!

"Mr. Lu."

At this time, Tang silent, who has never spoken, hesitated to speak.

"I love adventure, hiking."

"Especially in the Qinling Mountains, I've been to the Qinling Mountains for many times in recent years. I've been to almost all the places I can go."

All the people turned to look at her, their eyes full of doubts, all thinking about the heirloom. What did she say all of a sudden.

"I just feel that the seven page iron book does not seem to exist alone," Tang said

"Every page of terrain, I look a little familiar, I was thinking, if you connect them..."

Yeah?

Before Tang finished his silent words, Lu Tianlong's eyes suddenly brightened.

He put the iron book in his hand page by page in accordance with the order word by word, directly spread on the tea table in front of him.

Overlooking the past, a magnificent scene appears.

The whole Qinling Mountains are in the eyes of the public.