When I got through, Tang Xingchao's voice came from inside.

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

Lu Tianlong said: "yes, but it's your heirloom. It's so valuable..."

Before he finished, he was interrupted by Tang Xingchao.

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

"But yesterday I was too busy to talk to Mr. Lu, so I'll call you now."

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

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

"It's just that the Tang family has a precept, and only those with great power can succeed."

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

After talking for a while, Lu Tianlong hung up and became more and more curious about the wooden box.

He tried all kinds of methods, and even wanted to destroy it by violence, but it was amazing that although the wooden box looked ordinary, if it really used powerful means, it would generate a magical force, directly devouring the external forces.

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

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

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

Amazing thing happened!

"Pa!"

With a crisp sound, it seems that the lock of the wooden box bounced open.

Lu Tianlong started to lift the lid of the wooden box. He opened it without any difficulty!

There is an iron book in the wooden box!

It's an iron book. Lu Tianlong doesn't know what material it's made of. It's heavy in his hand, as if it's heavy.

"I don't even know this material."

Rubbing his fingers on some mottled books, Lu Tianlong whispered, feeling that it was more like made from ancient meteorite.

The iron book has seven pages.

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

If you look carefully, each page is actually a three-dimensional pattern.

It's like a picture of three places. There are mountains, rivers and plains on it. At a glance, you can see a three-dimensional picture in your mind.

"Every page is a map."

Lu Tianlong looked over it and thought to himself.

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

"What does this stone mean?"

Lu Tianlong was a little puzzled. He carefully observed that the black stone was almost in the middle of every page, but it was not exactly the same.

Comparing the positions of the seven stones separately, it seems that they were put up at will.

"What's the situation?"

Lu Tianlong's father-in-law and two monks are confused. This is the family treasure of the Tang family. According to Tang Xingchao, it is of great value.

Moreover, xuanyuanyun said before that the old man of one or two hundred years old in the mountains also said that to open the ancient imperial mausoleum in the Qinshan mountains, he needed the heirloom of the Tang family.

But how does it work?

Now I hold the seven page iron book in my hand, but I feel very heavy. Besides, there is nothing magical about it.

"Shadow, go to find the brothers, and Xuanyuan cloud, call together." Lu Tianlong himself tried to find a way, but it didn't work out. He immediately said.

Soon, qinger leads many brothers into the hall, Xuanyuan cloud also runs in for the first time.

Lu Tianlong described what happened just now, and then asked them to analyze the seven pages of iron books.

It's a pity that all the brothers of Zhan long, including Qing'er and Wen Tianhao, are as confused as Lu Tianlong just now. They don't know what the seven page iron book means.

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

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

In a word, people discuss, analyze and try, but it still has no effect.

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

Xuanyuanyun has just been locked in the back, did not dare to speak, now look at Lu Tianlong so staring at himself, anxious to cry.

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

"When it's over here, I'll go to his grave for a year. No, a year and a half..."

This guy was racking his brains just now, but he had nothing to do with Qing'er and others. Now Lu Tianlong stares at him and admits his mistake first.If the old man in the mountain is still there, maybe he can get some useful clues.

However, there is no if.

"Forget it, I'd better call Tang Xingchao. No, let him come directly." Lu Tianlong thought for a while.

After all, this is the treasure of the Tang family. Maybe it will provide some clues.

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

Seeing that the wooden box was opened, Tang Xingchao was also very excited. He carefully observed the iron book inside and praised Lu Tianlong.

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

"What's the use of the seven page iron book?"

After hearing this, Tang Xingchao was stunned.

Then he shook his head with a bitter smile, "Mr. Lu, I really don't know. We haven't opened this wooden box for generations."

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

"I've read all the ancient books and records long ago, and there's no record of them either. It's just that the ancestors of the Tang family once left a sentence that those who are not powerful can't open this box."

It turns out to be very frustrating.

Originally, Lu Tianlong had a great hope to use the Tang family's heirloom to explore the ancient land in the Qinshan mountains to see if it was the imperial mausoleum of an ancient emperor and whether it had dragon veins.

But now, this treasure of the Tang family is useless to him!

"Mr. Lu."

Just at this time, Tang, who had been standing beside him and didn't speak, suddenly hesitated to speak.

"I like to explore, to go wild."

"Especially in the Qinling Mountains, I've been to almost all the places I can go."

Everyone turned to look at her, eyes full of doubt, all pondering over the heirloom, she suddenly said what these do.

Tang silently hastened: "I just feel that the seven page iron book does not seem to exist alone."

"Every page of the terrain, I look at some familiar, I think, if they are connected..."

Yeah?

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

He will hand iron book page by page in accordance with the order of a word, directly spread in front of the tea table.

Overlooking the past, a magnificent scene appears.

The whole Qinling mountain range, impressively appeared in people's eyes.

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