Xiang Nan himself made a bold guess.
The ancients used the crystallization of the realm, that is, the holy spirit stone, to create eternal beasts.
These crystals must have been absorbed and digested by the beasts themselves. They shouldn't have a complete Holy Spirit Stone in their bodies.
It's like a person who has taken a elixir, after a while, you can't find the existence of the elixir even if you cut open his stomach.
It must be for some reason that some of the beasts bred new Holy Spirit Stones.
It may be due to the progress of the race. An ordinary beast evolves towards a silver-blooded beast. Every time it evolves, a holy spirit stone may be bred in their bodies.
Xiang Nan didn't know that for a beast to evolve from an ordinary eternal beast to a silver-blooded beast, it would take a total of several evolutions, but this might be a way to conceive the Holy Spirit Stone.
Or, when the ferocious beast raised its realm, it might give birth to the Holy Spirit Stone.
But the probability of this second possibility is not high.
Xiang Nan looked at the endless beasts outside. These beasts have not died for hundreds of millions of years, and no one has come to kill them.
If the holy spirit stone can be bred by raising the realm, it should be that all the beasts here contain a holy spirit stone. It is impossible for them to have not raised even a small realm for hundreds of millions of years.
Then the first possibility is the highest.
This leads to a problem. Not all eternal beasts have the opportunity to evolve into golden-blooded beasts, just like not all flood dragons have the opportunity to transform into real dragons.
Then, perhaps out of a hundred, or even two hundred ferocious beasts, perhaps only one ferocious beast could conceive the Holy Spirit Stone by chance.
Ten days have passed, and the dead beast has also been refreshed and revived.
These newly resurrected ferocious beasts did not have Holy Spirit Stones in their bodies, but they were randomly resurrected to the empty field where they were killed in front of the tower. Naturally, the probability of Holy Spirit Stones in this area was greatly reduced.
If you continue to fight here, the efficiency of obtaining the Holy Spirit Stone will still be further reduced!
This small world is very large, except for the area in front of the tower, there is a wider area, where there are a large number of areas of ferocious beasts that have not been slaughtered.
But the problem is, if Dali and Xiaochong want to kill the beast and seize the Holy Spirit Stone, the prerequisite is to be able to retreat into the tower at any time.
Xiang Nan can go to a more distant place to kill fierce beasts, but that means there is no way out, killing and killing, he will not be able to come back, he will die outside.
"If this happened to me, then Bai Hua, Jin Feng and the others must have discovered this phenomenon as well." Xiang Nan was thoughtful.
Think about it differently, what would you do if you were them
Of course, it is to improve the realm. If the realm is high, there will be a chance to enter.
And the Holy Spirit Stones they got should be limited, so they gave all the Holy Spirit Stones they harvested to one person to absorb, Bai Hua!
When Bai Hua became a master of the second level of Heavenly Tribulation, he would be able to lead the crowd to kill a bloody path out and into a deeper place.
In that way, they are very likely to find out that there is a tower!
When the two sides meet, how can they let themselves go.
Xiang Nan, the second level martial sage, against Bai Hua, the second level Heavenly Tribulation? There is not even the slightest chance of winning.
In my Haotian mirror, there is indeed a sword glow of the first level of heavenly tribulation, but the opponent has more than a dozen masters of heavenly tribulation!
After beheading one, the remaining dozen or so can instantly destroy themselves.
It's unwise to fight recklessly, you have to find a way to improve their realm one step ahead of them.
Xiang Nan roughly calculated the advantages and disadvantages of both sides.
Bai Hua's realm is much, much higher than Xiang Nan's. In the process of killing fierce beasts, they must be like themselves, thinking gradually, and discovering some better ways and methods.
Based on their level, if they want to fight fierce beasts, they must be more efficient than Xiang Nan.
But their disadvantage is that they dare not fight recklessly! Because they can't recover from injuries! They dare not get hurt, so they must be cautious.
My own advantage is that I have Dali and Xiaochong, and they can recover infinitely here.
My realm is not as good as the opponent's, but I can risk my life to fight bravely.
Especially Nether Silver, greatly improved Dali and Xiao Chong's efficiency in slaughtering fierce beasts.
"Hmm..." Xiang Nan nodded slightly, and said to himself, "Before they find me, I must raise my realm to a level that can compete with them."
"By the way, I remember that there seem to be three towers here."
"The holy spirit stones at the entrance of this tower are almost collected, so go to the other two towers."
Thinking of this, Xiang Nan immediately began to absorb the Holy Spirit Stone.
Xiang Nan absorbed the 1,024 low-level Holy Spirit Stones for four days and four nights.
Both the real body and the dream body have been promoted to the third level of martial arts.
Back and forth, this is fifteen days, and half a month has passed.
There is still one and a half months, and the efficiency must be improved!
Xiang Nan first used his mind-wandering technique to get his consciousness out of his body, and observed the positions of the other two towers.
Then, set up the annihilation shield, let Dali and Xiaoworm protect him, and sprinted towards the second tower.
After reaching the second tower, let Dali and Xiaochong go out to fight.
In two days and two nights, five hundred and twelve low-level holy spirit stones were collected.
It took another two days and two nights to get another five hundred and twelve Holy Spirit Stones.
One thousand and twenty-four holy spirit stones.
It takes 2,048 yuan to upgrade from the third level of martial arts to the fourth level.
Five days later, I got another five hundred yuan.
Nine days passed.
Xiang Nan switched sides and went to the last tower.
In four days and four nights, the last 1,100 Holy Spirit Stones were collected.
In total, 2,155 Holy Spirit Stones.
It took Xiang Nan seven days to absorb these Holy Spirit Stones.
With a loud noise, Xiang Nan's real body and dream body were promoted to the fourth level of martial arts at the same time.
Thirty-five days have passed since entering here.
There are only twenty-five days left before the agreement.
Xiang Nan was in a heavy heart.
The next small realm, from the fourth level of martial arts to the fifth level of martial arts, already needs 4,096 holy spirit stones.
And this floor, the three towers, have all been cleaned by him.
Is there a fourth tower? That's not important anymore, and Xiang Nan doesn't want to look for it anymore.
Because his time was running out.
A very serious problem is, if the Holy Spirit Stone is still collected according to the previous efficiency.
Then, for 4,000 low-level Holy Spirit Stones, it will take nearly 20 days to fight!
It takes fourteen days for a person to absorb these Holy Spirit Stones! Thirty-four days in total.
So here comes the problem, Xiang Nan now only has 25 days left.
"No, I have to go to the next floor." Xiang Nan gritted his teeth and became cruel.
The ferocious beasts on the next level have a higher realm, and maybe a higher level. The probability of them producing Holy Spirit Stones should remain the same, but the quality of Holy Spirit Stones produced may be improved.