The ancient knowledge tree has endless knowledge. Even if it is read through memory copying, it will not be finished without a hundred years. This is a huge treasure with infinite value. If conditions permit, Xiao Yu really hopes to stay in seclusion here for a year and a half. Unfortunately, the situation in Wentian City is unknown, and it will be more dangerous if you go back one minute later. I have to selectively remember. Anyway, there is Xiaobai around me, and even if her knowledge is not as rich as the ancient knowledge tree, it is still very rich.

Xiao Yu spent half a day memorizing hundreds of ancient recipes and learning a lot about alchemy and the skills and experiences of alchemy masters. This is enough, even a small part of the knowledge can be enough for Xiao Yu to digest for a long time and benefit for the rest of his life.

Xiaobai and other fox girls remembered a lot of basic knowledge of magic and technology. Although they looked at the time, they laid a crucial foundation for the establishment and development of Wentian Research Institute.

Xiao Yu took the fox girl back to the space ring and returned to the real world.

Probably, time passes faster in the world of truth, and it takes more time than imagined. When it comes out, it is almost dark. The war between Wentian City and the sea tribe may have been going on for a day and a night. Although I don’t know what the situation is, I believe that with Wentian City’s defense, Han Kexin and Zhao Changping’s abilities, and the support of the Fire Blade Tribe, they will not be compromised.

Xiao Yu shouted, "Hilalia!"

Hilaria walked out of the twisted space and held a staff. The staff was very beautiful and beautiful, with snow-white all over it. Six jasper-like leaves at the top were symmetrical in pairs, stretching to both sides. In the middle was a huge crystal-clear gem.

Xiao Yu recognized that this was the staff in the hand of the Elf King. For some reason, he gave Hilaria a very powerful natural force. This was definitely not an ordinary thing.

Shealia was wearing a flower crown, wearing a robe, shutting her feet, holding a delicate and noble scepter, and her thrilling beauty gave people a special feeling. She pouted and shouted: "So early? It's a waste, it's so wasteful! Even for ordinary elves, the opportunity to enter the world of truth is rare!"

Xiao Yu shook his head gently and said, "My companion needs me, I really can't stay here anymore. Say goodbye to the Elf King for me, I'll go back now."

"Okay, but just say goodbye. My father has arranged for me to take you back, so of course I will take you back. In addition, my father has prepared some small gifts for you." Hillarya did not wear a space ring or a ring. There was a fluctuation in the middle of her finger like a white jade-like finger. A ring pointed out now in the palm of her palm, "No, take it, this will help you."

How could the small gift Senmande give is an ordinary product? Xiao Yu immediately thanked and took the space ring.

Hilaria introduced: "There are some alchemy materials and several alchemy recipes to refine potions to remove soul damage by themselves. There is also a seed of the guardian of the giant tree. As long as it is planted into the soil, it can absorb energy and grow the guardian. The more power it absorbs, the stronger it will be. The most important thing is to give you an escape dagger. This is the spoil obtained by the elves in ancient wars. It is an epic weapon, with its power, but it can help you escape danger when necessary."

Xiao Yu looked through carefully. Without exception, the space ring was full of precious materials of level 4. It is basically related to the soul and is a treasure that is hard to find. There are also several thousand-year-old tree demon leaves and the thousand-year-old tree demon essence. The quality is much better than the hundred-year-old tree demon leaves that Xiao Yu obtained at the time. This is something that improves the success rate and quality of alchemy.

"Giant Tree Guardian Seed", a purple low-quality product, can be planted, consumes 50,000 energy points to summon the "Giant Tree Guardian", consumes 500,000 energy points to be upgraded to "Giant Tree Guardian".

"Escape Dagger", a middle-grade purple, from the abyss world, an epic weapon containing space power, can cut off space constraints and break magic restrictions. Attached skills: imprisonment break (level 4), positioning and teleportation (level 4).

The Elf King’s small gift is hard to find, and it even includes an epic equipment with space attributes. The preciousness of epic weapons is enough to make powerful fifth-level strong men snatch the heads. There are very few fifth-level strong men who can hold epic equipment, let alone rare epic weapons with space attributes.

"I almost forgot that my father made a memory crystal and handed it to you, recording the use of the Book of Miracles, which should be of great help to you. Finally, let me tell you that the elves never easily fight between races, and the father does not want to interfere too much in the development of human beings. For the time being, I can only help you so much. I hope you can lead human beings to grow in the right direction."

Xiao Yu said seriously: "Thank you, I must remember it."

"Okay, let's not talk about it, let's go."

Xilaria took Xiao Yu a positioning scroll and checked the spatial coordinates recorded on the scroll. She closed her eyes and held the staff with both hands. The powerful magic power was released, and the space suddenly tore apart with Xiao Yu and left here.

…………

A few hours ago, the war in Wentian City had just come to an end.

Dusk was like blood, sprinkling on the same bright red lake. Thousands of corpses were soaked in the water, internal organs and blood were scattered everywhere, and large pits and broken stones filled the area, cracked armor and broken weapons were left all over the ground.

After a long attack, the sea tribe killed the city wall several times, but was blocked and could not break through the impregnable Wentian City. In the end, the sea tribe left 35,000 corpses on the three walls, and slowly retreated to the opposite side of Yinjing Lake. The sea tribe suffered heavy casualties, but relying on the defense and treatment of a large number of giant rock turtles and war buildings, the loss of troops was not unacceptable. When the sea tribe retreated, the city walls of Wentian City were already bumpy, with as many arrow towers as 70%, piles of corpses, blood flowed into a river, and the city towers were dyed red.

The most tragic battle was the field battle between two major legions in the north. More than 10,000 orcs and more than 1,000 monsters led by Rolom and 60,000 sea clan troops launched a shocking battle on the field. The final result was that the orcs with no advantage in numbers were defeated, and the number of casualties in the sea clan troops reached half of the total.

The war of one day finally came to an end in dusk. Wentian City and the Fire Blade Tribe had more advantages on the surface. The number of soldiers lost was relatively small. The sea clan was at a disadvantage, and the losses were heavy, losing 60,000 combat power. In fact, it was not the case. The sea clan still had 150,000 troops, and the main force was not destroyed. In contrast, Wentian City's defense power was greatly weakened, and the orc army led by Rorom basically lost the ability to fight again after this battle.

It was just a half-day siege battle, and the sea warriors and mages consumed a lot. At this time, retreating was a chance to take a breath. The destructive defensive power of Wentian City could not be reorganized overnight. However, the sea army could recover its combat power overnight to launch a more fierce attack and capture Wentian City at a lower price. Temporary withdrawal is a wise choice to retreat to advance.

Han Kexin looked at the devastated ground in front of her, frowned, and had to admit that she was still underestimating the power of the fourth-level warrior. Hundreds of orcs, thirty transformed orcs, many Kodo giant beasts, dozens of two-legged flying dragons, and dozens of other monsters, with a large number of arrow towers covering the ground, and there were many traps on the ground. It should have been a must-kill situation.

However, Sabah used his own strength to kill more than half of the orc warriors, including nine transformed elite orcs, and also killed three Kodo giant beasts, five-headed flying dragons, and more than ten other monsters. He even smashed two arrow towers and almost killed Han Kexin many times, and finally forced him to kill a bloody road and escape seriously.

"It's a pity not to kill him. However, with the shark man being extremely heavy, it's no different from a useless man when he escapes. Even if there are enough therapists to cure his injuries and have severe mental overdrawns, he will not be able to continue to participate in the battle in the next three or five days."

Han Kexin took a deep breath and ordered people to clean the battlefield.

The battle statistics came out soon.

The material loss is unprecedentedly serious, because the Flame Arrow Tower is a second-level arrow tower, and the consumption speed is more than ten times more than that of ordinary arrow towers. The two magic cannons have never stopped using it for a moment. The energy used by the magic cannon is the soul gem!

The soul gems are consumed like flowing water, but most of the spoils are outside the city. The soul gems are recycled and taken away by the sea people during the battle, resulting in the rapid reduction of the soul gems in Wentian City and cannot be replenished. If you fight for half a day, the reserved soul gems will definitely be completely drained. Without the soul gems, the arrow tower will fail, the sky precipitation curtain will fail, the damaged equipment will not be repaired, and the soldiers' mental power will not be replenished... Wentian City will be destroyed without attacking.

Han Kexin was frowning and thinking about countermeasures.

"The deputy city lord, the battle between the reinforced Orc army and the sea clan army was left with 5,000 troops. They had successfully entered the city, but most of them were wounded." Zhao Changping was injured more than a dozen people, his armor was completely stained with blood, and his face was covered with blood. "We have captured a large number of enemy troops."

The Five Thousand Orcs Army is a powerful force, but it is far from enough in front of the 150,000 sea tribe army, not to mention that most of them are wounded.

Han Kexin asked: "How many captives are there in the sea clan?"

"It's probably more than a thousand."

Han Kexin was stunned for a moment and asked, "How come there are so many prisoners?"

"Most of them are seriously injured and disabled, and they have no time to rescue them by their companions. A considerable number of them are thunder magic scrolls prepared by the deputy city lord, which are given to the corona in the lake." Zhao Changping paused for a moment and continued: "There are more than 1,000 sea warriors, and there are several sea beast prisoners. The Wind Knights troops are continuing to clean up the battlefield and look for more spoils and prisoners."

In the square, more than a thousand sea warriors were bound by Tian Tian's demon-eating vines. When the troops of Wentian City were closely guarding, they stood in the square waiting for disposal. From time to time, a wind knight descended from the sky, put down several newly captured injured prisoners, and a large number of light balls with sealed items.

The captives were not all the sea warriors, but many injured monsters were among them. One of them was the most conspicuous, a dragon turtle with one eye blind, surrounded by Tian Tian’s vines. The butcher stood on the turtle's shell. Once the dragon turtle had signs of attack, a black lightning shot out from his hand and slashed the dragon head, making its head burst into pieces.

"A dragon turtle was caught!"

Zhao Changping nodded, "Well, it's entirely the butcher's credit that can capture this dragon turtle. How should these prisoners be dealt with? The Emperor of the Underworld said that there is a secret realm called the "Skeleton Ritual Land" in Dark City, which can transform them all into skeleton warriors to enhance the defense of Wentian City. Unfortunately, there are too many. If the whole legend is passed, the price will be too high."

Han Kexin ordered without mercy: "First pick out some of the seriously injured and dying or disabled prisoners, and seal them into the Grudge Spirit Tower. The others are locked up and making plans! The stronger the energy in the Grudge Spirit Tower, the stronger the power. This is the fastest way to improve the city defense power!"

"What about this dragon turtle? The dragon turtle is too powerful. If it is left in the city, it is a problem. The butcher can't keep guarding it."

Han Kexin hesitated and decided whether to kill the dragon turtle.

Du Tao suddenly hurried over and shouted: "Deputy City Lord, good news! The news of our besieged by the sea clan army has spread. Several alien tribes have been dispatched and want to join forces with Wentiancheng to deal with the sea clan together!"

(Thanks to Life, Xiang Qiangjian, for the monthly vote vote support, thanks to ggyy1301, Xiaoyao Fengyu for the reward and support!)

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Chapter completed!