The ancient doctors are very thoughtful.

The map he left behind is not a copy, naturally this treasure gate has to be broken, except for the ease of the stone medicine road, it can still be broken strongly, otherwise what if no one gets the stone medicine road, only to forcibly break it, the difficulty is very great.

Even if Dai Duxue and Wei Han joined forces and held the treasure, it would not be so easy to break it.

Tang Long watched as the Treasure Gate was attacked again and again, and a smile overflowed from the corner of his mouth.

"Aren't you crazy?"

"Don't you need me? ”

"It's time to regret it, oh yes, people didn't even know I was in. ”

Tang Long pondered slightly, and the smile on his face became brighter.

As a good man, he decided to do something good.

So, he walked to the back of the treasure gate, took out a dragon needle and pierced it into it, and activated a special needle method in the stone medicine path with all his might.

In just a few breaths, Tang Long was tired and a little panting, and the medical aura was completely exhausted.

Only then did he wipe the sweat from his forehead, and turned around to go deep with Xia Yulu.

As soon as the two of them walked a few steps, the screams of Dai Duxue and Wei Han sounded outside, and the reason was simple, because the treasure gate had the ability to counterattack, which caught them off guard after successive attacks.

"When did you learn badly. Xia Yulu smiled.

"That's what made me angry. ”

Tang Long's left hand grasped the three stone needles, and when his medical path aura was restored, he directly inserted it into the wall, activating the stone medicine path at all times.

This place of hidden treasure was created by the ancient physician Hou of Chao.

In addition to the difficulty of opening the door of the treasure, this passage itself is full of dangers, and the attacks formed by various stone medicine paths leading to guò stones are countless, and it is really hard to break through, and it is definitely deadly.

Tang Long's stone medicine has a special method of restraint, and he is not when he first broke the forbidden land of the ancient cave, he is only a sixth-rank doctor, and now he is the strength of the seventh-rank titled doctor, so it is naturally not difficult to suppress it.

The passage is deep, pitch black as ink, and you can't see your fingers.

The two of them have extraordinary eyesight, but they don't care.

From time to time, this passage will turn and will gradually go downward.

After turning six or seven corners, stepping into the end, there is a very large space in front of you, covering an area of tens of thousands of square meters, full of all kinds of treasures, spiritual essence.

The only thing that makes people feel very regrettable is that all of them have lost their origins and become waste.

Happily, compared to the treasures elsewhere that were seized into the inner city, the origin of these treasures was gathered in the heart of this great treasure land.

There, there was a thick fog that covered a large area, three or four hundred cubic meters.

You know, that's the origin essence of the treasure, not the so-called Heaven and Earth Vitality.

This kind of mist, just one bite may make a person in the samurai realm complete a breakthrough.

And in the heart of the mist, a golden key was taking shape.

The golden key is more than a meter long, and at first glance it looks like a golden short sword.

"This is the consequence of the dragon bottle master's forcible suspension of the chaos of the ancient medicine marquis against the chaos of the city. ”

"If it hadn't been for him, this golden key would have taken shape eight hundred years ago. ”

"Looking at this situation, it won't take too long to take shape. ”

Tang Long looked back at the passage behind him.

If it had been formed a long time ago, he would have taken the key directly, but the problem now was that if he needed to stay here and let it take shape slowly, it would be possible for Dai Duxue and Wei Han and others to rush in.

After a little contemplation, Tang Long returned to the passage and struck again.

He used his Stone Doctor Dao to strengthen the mechanism settings in the passage.

"Why are you so troublesome, even if you can't take it away, you can help speed up the formation of the golden key. Xia Yulu said.

"No, it's natural, and if I intervene, it might make it go wrong. Tang Long shook his head, "We can only guard here and wait for it to be fully formed." ”

Xia Yulu looked at the treasures and spirit essences around her that had become waste, and said with regret: "I don't know what this golden key is for, look at these treasures, I don't know how many times stronger than those in the Demon Spirit Clan's Treasure Pavilion." ”

Even if the Four Great Clans were wiped out and only a small number of people escaped, the background was not comparable to the small Demon Spirit Clan.

Tang Long also looked at the treasures and spiritual essences that had become waste products, and he was a little distressed.

He picked up a flask.

The flask was dull, as if it were made of black steel, but it was a very rare flask that had long since lost its original appearance.

The Flame Spirit Wine Bottle, any ordinary wine can be processed by this wine pot into a spirit wine that can help people speed up their cultivation, if it is a spirit wine that helps cultivation, it will produce a wine that is many times better.

Now it's in tatters.

Tang Long threw it away, and he picked up a demon wolf carving the size of a baby's fist.

This is a spirit beast carving that can only be made by a special soul physician, if there is enough true qi input, it can be transformed into a real demon wolf to fight, and what level of demon wolf soul is sealed inside, it is what kind of realm of combat power.

This is the masterpiece of the King of Medicine.

There are not many medical kings who are proficient in the soul medicine path in the world of the Hundred Emperors, so this kind of treasure is worth a fortune just by being rare.

In addition, those spirit essences are also a pity.

All of these treasures were ingested to form the golden key.

"I guess the benefits of this key should far outweigh these things. ”

Tang Long had reason to think so.

If you know that this place was created by the Ancient Doctor, would he not know about the treasures here?

Now that we know that we are still doing this, there is only one explanation, that is, the value of the benefits brought by the golden key will far exceed these things, or only the origin essence of so many treasures and spirits will be qualified to form the key and obtain greater mystery.

Tang Long and the others checked everything here.

It's all scrap.

Nothing can be preserved, and you can imagine how big the rebellion is in the city.

Tang Long walked to the edge of the mist, and did not go deeper, mainly because he could see that this golden key was at the last critical moment of forming, if he stepped into it, it would affect the operation of the mist, and it might cause some disadvantages to the formation of the golden key.

Just outside, Tang Long stretched out his hand, holding three stone needles in his hand, and went to explore the mist in the air, and then sensed the situation of the golden key.

Just like the feeling he had when he detected the stone statue of the Great King Dragon, this golden key really contained a small memory left by the Ancient Doctor, but the memory was not comprehensive, because it had not yet been fully formed, but it also clearly expressed the meaning of the memory left by the Ancient Doctor.

"I see. ”

"This golden key is indeed necessary to open the inner city. ”

"Compared with the mystery of the inner city, the treasures here are actually ...... in the eyes of the ancient doctors Garbage!"

Tang Long thought of the quality of those treasures and spirits, which he had never seen before, and could only see them from some ancient books, even the children of the living king family in Cangzhou City might not have seen them, let alone take them.

Such a good thing is rubbish.

What is the mystery of this inner city?

"To open the inner city, you need four keys. ”

"The golden key here is the most crucial. ”

"Hmm, this golden key is going to be fully formed, and it doesn't need so many treasure essence origins. ”

Tang Long's eyes suddenly lit up.

Xia Yulu was also excited when she heard it.

This is the essence of the treasure, and it can break through the samurai realm by taking a breath.

"It seems that although there are many disadvantages to the formation of 800 years later, there are some benefits. Tang Long said with a smile.

If it was formed eight hundred years ago, then the essence of the origin of the treasure that could not be used could not be returned to the treasure, even if it was a doctor's action, unless it was the king of medicine, there was a little possibility that the treasure would be restored.

But if there is no medical king, the result will be that it will dissipate between heaven and earth on its own, and it will be completely wasted.

Now that Tang Long and Xia Yulu are here, they can naturally be used for cultivation.

Tang Long quickly checked.

Soon there was a result, and the stone needle in his hand surged out, trembling slightly, and then clicked into the mist, slowly pulling it out.

A mist condensed into a stream of air, which slowly flew out from around the golden key, triggered by the stone needle.

Tang Long also fell backwards, constantly pulling out.

Eventually, he pulled out nearly a tenth of the mist around the golden key.

According to his judgment, the remaining nine-tenths of the amount of the final part of the perfect golden key was more than enough.

One-tenth is not much, but the difference in its essence is destined to bring great help to cultivation.

"Sister Lu, come, let's practice together. ”

Tang Long sat down cross-legged, letting the mist surround him.

Xia Yulu was not pretentious, and learned from Tang Long's mouth about the strength of the Giant Hammer Thief and the Ghost Knife Clan, which made her clear that her strength was too weak, and if she didn't improve, she would really become a burden, so she had to do her best to improve her strength.

The two of them sat down cross-legged and began to absorb the mist for refining.

At this time, the gap in the realm can be seen.

Xia Yulu is the Xuan realm, Tang Long is the realm of the wheel of life, and the great realm is next to each other.

However, Tang Long used the Yuan Spirit Breathing Method, and the amount of absorption at one time was five or six times that of Xia Yulu, and the refining could be imagined to be a lot.

When they finished refining all the mist, Tang Long could be said to have used up nearly four-fifths of the amount, and Xia Yulu was only one-fifth, but what about the realm, Tang Long was making great strides forward in the intermediate realm of the wheel of life, and there was still a short distance from the breakthrough, but Xia Yulu directly broke through two small realms from the Tongxuan advanced realm, reaching the level of Tongxuan Dacheng.

Although Tang Long's Starry Sky True Qi was too powerful and the refining requirements were even more demanding, this also indirectly showed that the gap between the small realms of the Life Wheel Realm was indeed very large.

They all have their own improvements, and it will take some time for the Golden Key to be fully formed.

The two of them continued to cultivate here, waiting.

Seven days later, the door to the treasure was finally blasted open.

Dai Duxue and Wei Han broke into the passage with the giant hammer thief and the master of the Ghost Knife Clan, and encountered the crazy attacks set up by countless mechanisms in the passage, and suffered a fatal blow at the beginning, suffering heavy losses, and after retreating, they attacked again.

In this way, they paved the way with corpses, moving forward little by little.

The golden key is also in its final form.