Seeing the old man laughing wantonly, Zhang Zichen asked tentatively: "Senior, what is the purpose of this Huang Yuntian book?"

"Well, it seems that he is still an ignorant young man, and he still doesn't know the origin of this Huang Yuntian book. ”

The old man held the little unicorn in one hand, stroked his beard with the other, and said: "This Huangyun Heavenly Book has nine volumes, which are gold, wood, water, fire, earth, wind, thunder, and dark light, and this volume of yours is the fourth volume, the fire scroll. ”

"So what exactly do they do?" Zhang Zichen asked.

"The function of the Huangyun Heavenly Book is to be able to absorb a large number of various attributes and purify them for your primordial spirit. It can also forge your primordial gods, so that all the impurities on the primordial gods are expelled, leaving only pure primordial gods. The old man explained, "In this way, your Yuan Shen can stay in the Yellow Cloud Heavenly Book and cultivate for a long time. ”

"Stay in Huang Yuntian's book and cultivate for a long time?" Zhang Zichen was puzzled.

Although Zhang Zichen had never taken care of this Huangyun Heavenly Book since he entered the Heavenly Realm, when he was in the human world before, Zhang Zichen had worked hard many times.

For example, it took time to study, but it was dark inside, very empty, and there was nothing.

For another example, Zhang Zichen thought that it could drip blood to recognize the owner, but in fact, dripping blood had no effect on it.

It was like this, lying quietly in Zhang Zichen's dantian, silently.

Of course, it has the advantage that it can prevent others from seeing the nine primordial gods in Zhang Zichen's body, which is its only benefit.

Zhang Zichen smiled bitterly: "Senior, are you saying that if I directly sneak the Yuan Shen into this Danshu Iron Coupon, I can continue to cultivate?"

"Yes, but the premise is that you must let your Danshu Iron Coupon absorb as much fire essence as possible, it will not only store, but also purify, and also forge your Yuan Shen, so that you will be in cultivation all the time. The old man said.

"But......" Zhang Zichen struggled for a while, and said, "But old-timer, I have studied this Danshu iron coupon for a long time, and there is darkness inside it, and there is nothing." ”

Hearing this, the old man's face was full of doubts: "Impossible! Your piece of Danshu iron coupon is full of pure fire essence, I just injected true qi, and they spewed out, don't you know?"

"What!?The Danshu Iron Deed is full of pure fire essence?" Zhang Zichen was a little skeptical, after he entered the Heavenly Realm, he had never entered the Danshu Iron Coupon again, could it be said that during this time, it had changed?

Thinking of this, Zhang Zichen couldn't wait to mobilize his divine sense and inject the Danshu iron coupon.

Suddenly, there was a red light all around, and huge flames raged everywhere.

This is......

Zhang Zichen immediately came back to his senses, thinking about it carefully, remembering that when he was in the human world, the Danshu Iron Coupon had no reaction, and he couldn't even see the internal structure clearly.

But now, how could there be such a large space in it, and there was so much pure fire essence stored?

When it comes to absorption and storage, Zhang Zichen seems to remember one thing.

That is, in the past few years, several of their junior brothers, in order to cultivate the Ancient Chaos Technique, had entered the Earth Fire Furnace of Alchemy Island to cultivate.

Could it be that it was at that time that this piece of Danshu Iron Coupon changed, absorbing the Taiyin True Fire in it and refining the Taiyin Fire Essence.

Yes, it must have been at that time!

Zhang Zichen is almost certain that it was at that time that the Danshu Iron Coupon changed.

Thinking of this, Zhang Zichen's face was overjoyed and showed a great smile.

Seeing Zhang Zichen's happy face, the old man laughed and said, "I didn't know the wonderful use of this Huang Yuntian Book before, but if I know it today, it's not too late." ”

"Thank you for the reminder. If it weren't for the old man's reminder, even if this Danshu iron coupon had been silent in Zhang Zichen's dantian, he wouldn't have looked at it again.

However, the old man took a deep breath and said, "However, this Huangyun Tianshu has one more of the biggest effects. ”

"The biggest effect?" Zhang Zichen was surprised, as if he was very powerful.

"Hmm!" the old man was silent for a moment and said, "The greatest effect of the Huang Yun Tianshu is that when you gather the nine pieces of Danshu Iron Vouchers and put them together, it will open a huge cosmic black hole, engulf all matter, and tear you to pieces. ”

"Nine Danshu iron coupons, gathered together, how powerful they are?" Zhang Zichen said in surprise.

"Yes. The old man smiled and said, "It's just that this Huangyun Heavenly Book has existed since the opening of heaven and earth, and until now, no one has gathered nine pieces of Danshu iron coupons. ”

After thinking for a while, the old man continued: "I think that back then, when the Northern Hades invaded the Heavenly Continent, the three emperors and the five emperors resisted together, and I wanted to gather nine pieces of Danshu iron coupons to devour and kill this powerful Northern Hades King. However, there were several pieces missing and could not be gathered, so in the end, seven of the three emperors and five emperors, eight people, died of serious injuries and slowly died. ”

This is about the Northern Underworld, not long ago, Zhang Zichen was in the eighth layer, and he read about the life deeds of the Jade Emperor.

It was also there that Zhang Zichen learned that hundreds of thousands of years ago, the Northern Underworld had invaded the Heavenly Continent, but was defeated by the Three Emperors and Five Emperors.

As a result, the Northern Underworld failed and returned to the Northern Underworld Continent.

After that, at the end of the northern part of the Heavenly Realm, the Heavenly Realm Continent built a boundless and tens of thousands of feet high Great Wall, which was also covered with various enchantments to resist the next invasion of the Northern Underworld.

Just thinking about it, the old man sobbed twice and said, "If you had been able to gather these nine Danshu iron coupons at the beginning, then the Jade Emperor would not have died." ”

Zhang Zichen was speechless, he had to persuade: "Senior, please mourn." ”

The old man nodded and said, "Young man, I think you are young and extraordinary, and you will definitely be a big man in the future." So, I would like to ask you to take my great-great-great-grandson out and show him the world. ”

"This ...... I...... Can I do it?" Being able to have a golden unicorn as a pet was naturally something Zhang Zichen was excited about, but this excitement seemed to come too quickly.

"You can do it, even if you can't, my great-great-great-grandson has the ability to protect himself, and he will return here on his own. The old man's words made Zhang Zichen cry and laugh.

"Okay, old-timer, I'll take it out for some practice. Zhang Zichen smiled.

"Hmm!ha!" the old man began to laugh, "We Golden Qilin clan have not appeared in this world for too long, we should go out and let others see our glory again." ”

Zhang Zichen was stunned for a moment and said, "Really, but some time ago, I saw how many golden unicorns there were in the Jiang family?"

The old man shook his head and said, "No, those golden unicorns just have our bloodline, to put it bluntly, they are miscellaneous/handed." ”