Upgrading the Blood Soul Knife, it actually failed four times in a row, this is 400,000 top-grade spirit stones, no matter who it is, I'm afraid it will hurt so much that it will drip blood, but what can be done? At least now the success rate is constantly increasing, it has reached seventy-four percent, and this success rate is obviously very high.

Shaking his head with a wry smile, Zhang Nan didn't think about it anymore, everything was left to fate, so he once again put 100,000 top-grade spirit stones into the purple gold bowl again!

The powerful light was so dazzling that Zhang Nan couldn't help but close his eyes.

"Blood Soul Knife!Upgrade the best holy weapon!Upgrade successfully!"

The voice of the purple gold bowl slowly spread in Zhang Nan's mind again, making him extremely excited in his heart, and finally succeeded, the Blood Soul Knife became a top-grade holy weapon, which was a success that took him 500,000 top-grade spirit stones! This hard-won success made him extremely excited.

However, the more happy news was still later, and immediately after, the purple gold bowl once again came with a voice that made him almost jump wildly: "Next time you upgrade, you will upgrade the emperor tool!"

This is extremely important news, it can really be upgraded to the emperor's tool, the purple gold bowl, it's too good, Zhang Nan wanted to give the purple gold bowl thirty-two likes, but the remaining half of the purple gold bowl made his excitement instantly decrease a lot.

"Need the best spirit stones, five million! The success rate of upgrading, twenty percent!"

Five million, twenty percent, the two numbers kept spinning in Zhang Nan's mind, making the left side of his face laugh, but the right side of his face was crying.

Zhang Nan thought that the remaining more than 400,000 top-grade spirit stones might be able to be upgraded once, and if he was lucky, he was directly upgraded to the emperor's tool, but the five million told him that the emperor's tool was really not simple, not so 400,000 top-grade spirit stones could be upgraded, and this twenty percent even told him that it was possible to obtain five million, and the possibility of successful upgrading was not great, and it was very likely to be the same as before.

But after all, there was hope, and the Blood Soul Knife really had the potential to upgrade the Emperor's Tool, which made him extremely gratified.

As soon as Zhang Nan's mind moved, the Blood Soul Knife flew out of the purple gold bowl, constantly spinning and flying around him, looking extremely flexible and to Zhang Nan's surprise, the Blood Soul Knife at this time had actually changed, and there were many strange lines growing on the blade, but now it was not clear what this pattern was.

"With you, if you want to come to the Great War of Ten Thousand Dynasties, you will definitely be able to be fearless!"

Reaching out and holding the Blood Soul Knife in his hand, Zhang Nan was extremely happy, maybe there was no way to upgrade the Blood Soul Knife to an emperor's tool, which was a good thing, after all, his cultivation was still too low, if he met a master like those people in the City of Ghost Girls, Zhang Nan was not an opponent, after all, this Ten Thousand Dead Dynasty really couldn't be compared with some other super dynasties.

In this continent, the dynasty is also divided into several categories according to its size and the number of strong people, such as the Wanyan Dynasty and the Qingshen Dynasty, all of which belong to low-level dynasties, and there are intermediate dynasties, high-level dynasties and super dynasties above.

It is said that in addition to the vast territory of the super dynasty, the dynasty also has the sages of the Spirit Saint Realm, the Spirit Venerable Realm is respected by people as the Venerable, and the people of the Spirit Saint Realm are called the Sages, and the Spirit Emperor Realm is called the Emperor!

Of course, there are almost no emperors in this continent, after all, they are characters waiting for ascension, characters who are about to go to the fairy world, and the existence of being able to overlook the entire continent is also a realm that everyone yearns for.

Zhang Nan put away the Blood Soul Knife and soon went out, it was getting late at this time, but after thinking about it, he still came to Quan Yingcao's residence.

"Come in!"

Quan Yingcao sensed that Zhang Nan was coming, and before Zhang Nan knocked on the door, her voice came out.

Opening the door, Zhang Nan walked in.

"You came to me so late, is there something wrong?"

At this time, Quan Yingcao was sitting at the table, rubbing a small white bone fragment in her hand, and there were some thin lines on it, obviously she was frowning and studying.

Zhang Nan walked over, sat down next to Quan Yingcao, and was about to pour himself a cup of tea, but as soon as he picked up the teacup, his eyes suddenly enlarged, isn't what Quan Yingcao is holding in his hand exactly the divine bones? Twelve divine bones, he has now obtained nine pieces, only three pieces are missing, but he didn't expect that Quan Yingcao actually has one in his hand.

"Yingcao, that, where did you get this thing in your hand?"

Zhang Nan couldn't help but ask curiously, it seems that Quan Yingcao has also discovered that this is not an ordinary bone, and he is studying here, but with just one piece, even if he studies it for a hundred years, he can't study anything.

"Well, this bone is very strange, very hard, in the hand, there is a faint feeling of warmth, I can't see anything after looking at it for a long time, but this thing is definitely not simple, this is what I found in Li Tianyi's room, it is contained in a box, this thing, I actually burned it with the flame of my fire spirit, it can't be burned a little bit, I also used the holy weapon you gave me to chop, and it can't hurt it at all, so how did these lines get up? It's really strange! And what does this pattern portend?"

Quan Yingcao put this divine bone on the table, frowned and said, and listening to her words, Zhang Nan's face became a little weird, fortunately, this thing is extremely hard, it can't be destroyed in this way, if it is really broken by Quan Yingcao in such an arrogant way, then Zhang Nan will not be angry to death.

However, listening to Quan Yingcao's words, Zhang Nan was also slightly surprised in his heart, he had never tried these methods, he didn't expect this divine bone to be so hard, too peculiar, and now he, twelve pieces, he has nine pieces, but he put these nine pieces together, and he couldn't see anything, those lines seemed to be unable to be connected at all, this side of this line was connected to the line of that bone, but the other piece was staggered, which made him have a headache.

"Well, Yingcao, actually, I might as well tell you, but don't tell anyone else, I already have a piece of this kind of bone here, a total of twelve pieces, plus the piece in your hand, it is only two pieces. ”

Zhang Nan thought about it, and felt that there was no need to hide this matter from Quan Yingcao, or if many people helped him think about it, maybe he could see some clues?

Quan Yingcao heard Zhang Nan call her Yingcao shamelessly again, and couldn't help but glance at Zhang Nan, but Zhang Nan's words below made her open her red lips in surprise, it turned out that there were a total of twelve bone fragments, and Zhang Nan actually had a few pieces there, thanks to her continuous research during this time, she studied one, even if she looked at it for a hundred years, she couldn't see anything unusual.

"Since you have nine pieces, then this one will be given to you, but can you tell me what you have researched?"

Quan Yingcao handed the bone fragment in his hand to Zhang Nan, but he couldn't help but look at Zhang Nan curiously and asked.

"Ahem, I'll tell you the truth, although I have obtained nine pieces, I still haven't seen anything until now, but what I know is that if these things add up, it is a map, it should be a treasure map, and it has been scattered into twelve treasure maps in various places!"

Zhang Nan smiled and said lightly.