This means that he only needs to kill less than two hundred cat-faced demon bats to break through the Holy Knight who was promoted to level 16.

With the strength that Su Li has now, killing two hundred cat-faced demon bats is very easy and simple.

As groups of cat-faced demon bats surged upwards, Su Li soon killed nearly two hundred cat-faced demon bats, harvested the number of spiritual sources he needed, and successfully promoted.

In my mind, messages appeared one after another.

"Level 15 Saint Knight: Spirit Source 26000/26000"

"Start promotion"

"The whole body begins to strengthen..."

"The basic strength has been increased to 21,500 kilograms"

"Basic defense has increased to 21,500 kilograms"

"The physical strength is enhanced, and the basic continuous explosion time is extended to 38 minutes."

"The lung capacity increases, and the basic breath holding time is extended to 38 minutes."

"The speed is improved, the reaction ability is improved..."

"Promotion completed"

"Level 16 Saint Knight: Spirit Source 0/30000"

"First Talent: Strengthening the Favor"

"The Second Talent: The Permit"

"The Third Talent: Unknown"

"Basic strengthening: muscle-building MAX, super heart MAX, steel bone type III, intelligent brain type II, strong lung type I, violent liver type I, Hormone control type I, treasure kidney type I, iron stomach type I, courageous gall type I, spleen type I, sacred power fifteenth layer"

"Spiritual Source 1: The Third Form of Devil Muscle"

"Spiritual Art 2: The Third Form of Demon Enchantment"

"Spiritual Source 3: The Third Form of the Demon Holy Bone"

"Spiritual Source 4: The Third Form of Demons Dance"

"Spiritual Source 5: The First Form of Magic Array in the Demon Realm"

"Basic reinforcement options: steel bone type III, intelligent brain type II, strong lung type I, violent liver type I, Hormone control type I, treasure kidney type I, iron stomach type I, courageous gall type I, spleen type I, sacred power fifteenth layer, teeth"

Sensing the messages that appear in your mind, every organ, internal organ, strength, defense, and reaction ability and speed in your body will be improved.

Every promotion is equivalent to a comprehensive improvement in the whole body.

Of course, in addition to the comprehensive improvement obtained by promotion, there will be an opportunity to strengthen each time, and you can choose an additional part for strengthening. Because of the first talent, Zuli will get an additional opportunity to strengthen.

In the first strengthening, Zuli continued to use it to strengthen the power of sacredness. This invincible ability is so useful, and the longer the natural time, the better.

The sacred power of the sixteenth level is enhanced, and the time is extended to eight seconds. If it is in the limit state, it will become nine seconds.

The second strengthening was used by Zuli to strengthen the spleen and strengthen the spleen type I to spleen type II.

Spleen type II, the physical fitness has been extended for 6 minutes. He is now fully physically active, which has reached 133 minutes.

This means that if he does not use "devil muscles" and "overlimits", he can fight for two hours and another thirteen minutes under normal conditions.

In addition to continuing to strengthen the sacred power, Zuli's current choice for strengthening is to focus on the balance of the five internal organs for the rest of the strengthening.

The heart has been strengthened ten times and has also obtained the special ability of the "Heart Furnace". These days, he has been using the "Heart Furnace" to store energy. At critical moments, this Heart Furnace can enable him to gain the ability to continue fighting.

The remaining key points to strengthen are liver, spleen, lungs and kidneys. These important organs and organs in the body must be strengthened one after another.

As he was promoted to level 16, he killed the cat-faced demon bat and immediately reduced the number of spiritual sources he harvested. For each killing one, he could only harvest level 10 spiritual sources.

Of course, compared to the number of spiritual sources obtained by killing those beasts outside, the killing of this cat-faced demon bat is still amazing.

After all, killing a cat-faced demon bat is equivalent to killing ten ordinary beast generals of level 16 now.

Moreover, the strength of this cat-faced demon bat is not strong. Su Li followed this giant tunnel and killed it all the way inside, which seemed very easy. He did not need to use "devil muscles" or "overlimiters". He could easily kill with his strength under normal conditions.

One cat-faced demon bat after another was killed by him, and there was still a dark mass in front of him, like a dark cloud coming.

Su Li thought that using the Red Moon Dragon Slash was too slow. Although "demon dance" was good, the impact was too wide. Once used, it might cause damage to the walls on both sides of the tunnel.

When Su Li was thinking, he activated his third talent, and the rolling black clouds swept in all directions, easily killing a large area of ​​cat-faced demon bats.

These days, Zuli has become more and more skillful in using his third talent. He is simply following the thoughts and has extremely powerful power. He easily killed hundreds of cat-faced demon bats and harvested thousands of spiritual sources again.

However, as Su Li advanced to level 16, if he wanted to break through again, the number of spiritual sources needed has increased to 30,000. According to this number, even if he killed the cat-faced demon bat, he still needed to kill 3,000 to break through.

Although there were still groups of cat-faced demon bats in front of him, Zu Li guessed that there should be less than 3,000 so many.

With the third talent in succession, Su Li suddenly felt a little tired after a few minutes.

Using this third talent does not cost much physical energy, but it will make him mentally exhausted. It seems that the third talent is more about consuming his mental energy.

This was the first time that Zu Li had used his third talent for such a long time in the battle. After feeling mentally exhausted, he was busy putting away his third talent. Now he was more and more sure that the essence of this third talent should be related to spiritual power.

If he uses the third talent for a long time, he will be mentally exhausted.

Once the mind is exhausted, all aspects will be affected, including the ability to react, the speed of the brain rotation, and the probability of errors will also increase. If a small mistake is possible in the battle between life and death, it is possible that all of them will determine life and death.

"It seems that spiritual training is needed." Su Li thought silently. Although this third talent is powerful, it will take a huge price to continue to display it.

Afterwards, he held the Red Moon Dragon Slash in his right hand, and continued to release black lightning with his left hand, and continued to attack these cat-faced demon bats.

After a while, the number of spiritual sources he owned had reached 3,000 again.

However, the number of cat-faced demon bats that appeared gradually became rare.

Su Li continued to go deeper along the tunnel. In the end, all the cat-faced demon bats that appeared were killed by him, and the number of spiritual sources he had reached about 5,000.

A large number of cat-faced demon bats were piled up in this giant tunnel. Zuli did not continue to go deeper, but stopped and rested for a while. At the same time, he opened the Mirage Realm and took out some early cleaned berries to eat to replenish his energy.

He came in too hurry this morning and hadn't eaten anything yet.

When he opened the Mirage Realm, he found that new buds appeared in the center of the floating island beside the ground berries trees. It seems that new fruit trees are growing. These days, the changes in the floating island can be said to be a new change every day, and Zuli is no longer surprised.

After closing the Mirage Realm, Zuli ate a few ground berries and then rested on the spot.

He just continued to use his third talent and was mentally exhausted. He needed a rest to recover.

After recovering some of his energy, Zuli stood up and continued to move forward. When he reached the end of the tunnel, an extremely huge cave appeared in front of him.

This is a cave that is nearly a semicircular, like an upside-down bowl.

The four walls of the cave are covered with caves of all sizes, shaped like beehives.

When he just walked out of the tunnel, he was greeted by groups of strange beasts.

These strange beasts, with leopard bodies and goat-like heads, screaming like roosters crowing, echoing around in this cave, making people hear it, and they are indescribable. After listening for a long time, they may even feel pain in their heads.

Obviously, the call of this strange beast can act and influence the spirit of a person.

At this moment, in the caves of varying sizes around the cave, groups of monsters with sheep-headed and leopard bodies were making strange screams like roosters crowing, jumping out and rushing towards Zuli.

Zuli's "peeping runes" instantly captured their information.

"Name: Sheep Relics, descendants of ancient relics, sheep-headed and leopard body. After the death of the ancient relics, its corpse was eaten by the sheep-leopard genus. The ultimate birth of the fat-leopard descendants contains a trace of fat-leopard bloodline in their bodies. Although it is already thin, it is still extraordinary. It contains powerful spiritual energy and has a very low probability. It feels that the fat-leopard bloodline in its wake will turn into fat-leopard."

Sensing the information, the sheep in front of him had already rushed to the front.

Compared with cat-faced demon bats, these sheep lily with the ancient species of fat bloodline are much stronger. Su Li paused, and the Red Moon Dragon Slash in his right hand slashed out towards the front, and a tragic sword light flew out, and suddenly screamed, and a sheep lily was chopped in half in front of him, and died in an instant.

Although Yang Yi is stronger than the cat-faced demon bat, it is actually equivalent to an elite beast general of level 16, and he is not Zuli's opponent.

A spiritual source appeared and penetrated into Zuli's forehead. A message appeared in his mind, prompting the spiritual source he had gained.

"Yes, a sheep's remains can obtain 20 spiritual sources."

Zu Li was excited and stepped on the "spider walking", rushed into the flock of sheep in front of him, and began to massacre.

Entering this giant cave, unlike in the tunnel, where the burden destroyed the walls of the cave on both sides, Zuli was in the center, looking at the densely populated sheep lily appearing from all directions, and immediately launched the "demon dance".

The third form of "demons danced around", so powerful that countless liquefied demons, holding various weapons, rushed out of Zuli's body with roars and rushed towards the sheep in all directions, and crushed them all the way. In an instant, at least more than fifty sheep were trampled into meat paste.

Su Li harvested thousands of spiritual sources in one go.

With the continuous use of "Demons Dance", the spiritual sources that Su Li quickly had reached 7,000, 8,000, and 9,000...

It easily exceeded 10,000 pieces.

The total number of sheep that appeared this time is about 700. Each kill can obtain 20 spiritual sources. The seven hundred sheep brings 14,000 spiritual sources to Zuli.

With the addition of about 5,000 spiritual sources he had before, after he killed all the sheep relics, the total number of spiritual sources he had reached 19,000.

The speed of harvesting spiritual sources was like a rocket. Su Li was very excited. He didn't feel tired when he killed these 700 sheep, and he had almost no rest. After confirming that there were no new sheep in the surrounding caves, he began to walk towards the end.

Although there are various caves of varying sizes around this giant cave, there is a unique stone gate at the end. Zuli guessed that it should be the entrance deeper into the ruins.

Although killing these cat-faced demon bats and sheep relics can harvest a large amount of spiritual sources, when Zhu Gaozhi discovered this day, he was already a super strong man at level 20. He could no longer harvest any effective spiritual sources before he could break through the realm. Therefore, he was reluctant to kill these ancient descendants, and finally sealed them, leaving them to the future after breaking through the realm, or to cultivate his descendants or the closest people.

He never thought that all this calculation would be cheaper.

Zuli reached the stone gate at the end. There were some seemingly complicated talismans on the surface, and some very shallow traces appeared between the talismans, as if they had been attacked.

Su Li understood that if he wanted to open the stone gate, he would have to launch these talismans, but he could not recognize any of these talismans and did not understand the method of opening them.
To be continued...