Picking up the dark yellow crystal on the ground, Lin Feng temporarily put it into his apocalyptic table, at this moment, a large number of zombies have not been solved, and there is no leisure in the world to study that citrine at the moment.

After picking up the six-barreled machine gun from the ground again and reloading a load of bullets, Lin Feng picked up the machine gun and fired at the approaching zombie group.

The machine gun has no effect on level 3 zombies, which does not mean that it is also powerless against these ordinary zombies in front of you. Under Lin Feng's strafing, a large number of zombies fell.

Lin Feng had plenty of ammunition, and after using three rounds of bullets, he finally swept away this corpse. The remaining second-level zombies were not killed by machine guns, but under Lin Feng's Xuantie bayonet, they were all killed one by one.

It's a pity that these second-level zombies no longer have black balls in their heads, but are all light yellow crystals. Now that Lin Feng was familiar with dealing with second-level zombies, killing them was as simple as chopping melons and chopping wood. As long as there are not a large number of them, Lin Feng can still cope with it under normal circumstances.

After Lin Feng's cleanup, there were no more zombies at a distance of kilometers. The passage between Lin Feng and the entrance of Tianheng Mountain was completely opened.

Seeing that there was nothing going on, Lin Feng took out the light yellow crystal from the brain that he had killed the second-level zombies before, and the dark yellow crystal that he had obtained after killing the third-level zombies.

Today's Lin Feng was already a fourth-level cultivator, and the effect of absorbing the white crystal was really limited. Whether it is the amount of energy obtained, or the speed of growth after absorbing white crystals, the effect is much worse than before level 4.

Citrine is much higher than ordinary white crystal in terms of energy quality and quantity. This is why citrine is much more precious than citrine in the last days.

Before coming to the foot of Tianheng Mountain this time, Lin Feng had obtained a total of ten citrine, nine of which were light yellow and one was dark yellow. Lin Feng picked up a light yellow citrine and held it in his hand, feeling the energy in the citrine.

A stream of energy emanated from Lin Feng's divine soul and was transmitted to the citrine in his hand, and then a suction force came out of Lin Feng's hand, and the divine soul was absorbing the energy in the citrine in Lin Feng's hand.

Lin Feng could clearly feel that the energy coming from the citrine was much higher than that of ordinary white crystal, and the quality and purity of the energy were also extremely obvious.

After a while, the citrine in Lin Feng's hand was already dull and colorless, and the energy in it was exhausted and absorbed by the divine soul in Lin Feng's mind.

Worthy of the citrine produced by the second-level zombies, Lin Feng felt that absorbing this citrine was comparable to absorbing a hundred ordinary white crystals.

It's not that one citrine is equivalent to 100 white crystals, in fact, when Lin Feng absorbs white crystals, the amount absorbed every day is limited, and the current Lin Feng can no longer absorb the energy after absorbing 20 white crystals a day, and after absorbing a certain amount of white crystals, the divine soul seems to be about to digest the absorbed energy.

This created a bottleneck, and Lin Feng was unable to absorb more white crystals during the day. But the current citrine is different, one citrine is worth 100 white crystals, that is to say, now Lin Feng absorbs the energy in one citrine, which is equivalent to the speed of absorbing five days of white crystals in the past.

Not only is it a matter of speed, the energy purity of the citrine quilt is obviously much higher than that of the white crystal, and the effect of this citrine absorbed by Lin Feng is much higher than that of absorbing a hundred white crystals.

To give a simple example, with Lin Feng's current level of cultivator level 4, he had to absorb the energy of 10,000 white crystals to be able to reach the level of level 5 of a cultivator. However, Lin Feng was only able to absorb 20 white crystals a day, and it took 500 days to be able to improve.

However, Lin Feng's absorption of one citrine was equivalent to 100 white crystals, and the energy purity of citrine was much higher than that of ordinary white crystals, so absorbing one citrine was almost equivalent to Lin Feng absorbing the energy of 200 white crystals. In this way, with only 50 citrine, Lin Feng would be able to reach the level of a cultivator level 5.

Of course, this is only a theoretical value, in fact, the ability of each second-level or third-level zombie is different, and the energy contained in citrine is also different. Moreover, a cultivator who has been promoted to level 5 cannot be calculated with a simple number, otherwise, this world has already entered the last three years, and according to the words of every cultivator absorbing white crystal or citrine every day, then not everyone can reach the level of a high-level cultivator, and it is impossible for a second-level cultivator to exist in the last days.

The improvement of a cultivator's level is not only based on the speed at which the crystal energy is absorbed, but also varies from person to person. Each cultivator's divine soul is different, and similarly, each cultivator's physical quality is different, and their potential is also different. Therefore, not all cultivators ascend at the same speed.

After absorbing a citrine, Lin Feng felt that the energy within his divine soul had increased a lot. At this point, Lin Feng decided that as long as he had the opportunity in the future, he would try to absorb citrine as much as possible, and the improvement of ordinary white crystal on the level was not very obvious.

Of course, all of this can be said on the premise of having citrine, and the preciousness of citrine in this world will not be sold. If you want to absorb citrine, you must hunt high-level zombies yourself. In the base, citrine may not be able to buy even if you have money.

On weekdays, Lin Feng basically stays at the base, and this time he went out just to have an opportunity. While looking for mandal flowers for Ling Tian, Lin Feng decided to hunt more citrine, only by constantly improving his own strength could he better survive in this apocalypse.

Lin Feng continued to absorb the remaining few citrines, and powerful energy continued to pour from the citrine in Lin Feng's hands into the soul in Lin Feng's mind. The divine soul emitted bits of silver, flashing and flashing, constantly devouring the energy of citrine.

It wasn't until he absorbed 9 light yellow citrine that the divine soul stopped, and the dark yellow citrine was still in Lin Feng's hand, not absorbed by Lin Feng's divine soul.

Lin Feng felt that after absorbing nine citrines, his strength had increased by at least two layers compared to before. In order to confirm the improvement of his strength, Lin Feng took out the doomsday watch and checked his combat strength.

Sure enough, the Doomsday Table showed that Lin Feng's combat power had reached 1,230, ranking more than 1,500 in the entire Tianqi City. Through the absorption just now, Lin Feng's standing improved by more than 200 points.

And that dark yellow citrine, Lin Feng can't absorb it at the moment, so he can only put it in the doomsday table and wait until the divine soul digests the current energy before using it.

Taking a deep breath, Lin Feng looked at the entrance of the Weather Mountain Range.

In front of Lin Feng was one of the many entrances of the Tianheng Mountain Range, consisting of two cliffs, the width of the entrance was only five meters, after Lin Feng's concentrated strafing of the entrance before, there were no zombies now.

Walking towards the entrance of the Tianheng Mountain Range, Lin Feng finally wanted to enter the Tianheng Mountain to find out.

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