The army of the undead continued to advance towards the main city of Laika, and Ji Feng, who returned to the main city first, opened the castle fortress hovering above the main city, and the external circle had plenty of time to absorb elemental energy and form a defensive light curtain.

A huge circular light curtain was upside down in the sky above the huge city of Laika, completely enveloping the entire main city, quietly waiting for the return of the army of the undead.

While waiting for the undead army to attack, Ji Feng entered the interior of the castle fortress, and in the small spatial plane, he completely opened the entire control core, and forcibly upgraded the castle fortress under the power of the small dimensional fortress and transformed it into a fully armed alchemy fortress.

The castle fortress was transformed into an alchemy fortress, and the small dimensional space was completely integrated into the entire alchemy fortress, and the sub-plane that originally existed relative to the small dimensional space was like the shadow of a living organism, upside down in the outer plane of the alchemy fortress, constantly absorbing the energy of the outer plane, and becoming the energy collector of the alchemy fortress.

This change is one of the changes that Ji Feng deduced from the model in the inner space of the Gate of Dawn.

The castle fortress was transformed into an alchemy fortress, integrating the small dimensional space into the core energy chamber, and turning the sub-plane into an energy harvester, so that even if it was a protracted battle, the alchemy fortress could hold on for a long time, instead of opening the light curtain of the defense circle like the last time, and it would not last long.

The alchemy fortress is expanded, the energy light curtain can be used for a long time, and the internal alchemy furnace can also be activated, and in the case of sufficient energy and materials, alchemy puppets can be produced in large quantities, and all kinds of powerful troops can be produced in batches.

However, Ji Feng did not take the initiative to activate this alchemy furnace, but instead condensed all the power of the small dimensional space and the internal space of the sub-plane, and used the data stored inside the alchemy furnace to condense a young branch of the World Tree that was only half a meter long and the thickness of a thumb.

It is a half-finished twig of the world tree, but also a semi-materialized, semi-vegetative work.

After the young branches of this world tree appeared, the energy inside the alchemy furnace was transformed, forming a large amount of natural energy.

With the infusion of energy, the twigs of this world tree flew out of the alchemy fortress, and in the sky above the alchemy fortress, it inherited the natural energy that was constantly emerging from the surroundings.

As the surrounding natural energy increased, the branches of the World Tree also changed, their form became incomparably larger, and their appearance also changed.

Soon, a giant natural tree man with a height of twenty meters and a human shape appeared, slowly descending from the sky to the ground in front of the main city of Laika, and walked forward with the sound of rumbling footsteps.

This is a war tree man formed by the young branches of the world tree, which has great fighting power, represents the anger and hatred of the natural world, and is formed for revenge.

In front of him, there was an army of the undead, black undead dark energy surging above the heads of the powerful undead monsters.

The War Tree Man looked at these undead monsters with cold eyes, silently recording the strongest among all the undead monsters, and deep in one of his arms, the green beads formed by the life force condensed in his palm emerged.

These green beads, which contain the power of life inside, are only the size of a thumb, and there are many of them, tens of thousands.

With a wave of the War Treeman's hand, these green beads flew out one after another, extremely fast, and shot into the body of the undead monster powerhouse on the opposite side at once.

The green bead representing the power of life entered the body of the undead monster powerhouse, and the powerful vitality flowed through the whole body, not only did not make these undead powerhouses excited, but made them let out terrifying screams.

Because in their bodies, the huge vitality and death qi are tumbling, in the crazy collision, in the desperate consumption, the rich and incomparably rich energy breath, and even from the body uncontrollably appeared outside the body, because of the boiling of this energy, the whole body caused the original purest undead dark energy in their bodies to fly out of their bodies like a volcanic eruption.

However, the souls of the undead powerhouses are extremely silent, locked in their most core parts, and dare not leave the defense of the core, because once they go out, the dark energy of the undead in their souls will react most violently with the external life qi, and their souls are likely to make a "bang" sound and completely shatter.

The souls of the undead powerhouses are in a state of dead silence, so that the dark energy of the undead in their bodies is completely out of control, and the life qi in their bodies are entangled, squeezed, and consumed.

A low roar emanated from the bodies of these undead powerhouses, completely disrupting all the energy circulation in his body.

These undead powerhouses were depleted by the life qi, let out a roar, and constantly frantically absorbed the natural elemental energy around them, transforming them into the undead dark energy used by the undead physique, and these energies were completely squeezed and pushed out of the body by the life qi.

The war tree man standing in front of the army of the undead, feeling that the undead powerhouse on the opposite side was still dying, and with a movement of his fingers, a shock ripple erupted from the palm of his hand, and immediately spread to the life qi in the bodies of all the undead powerhouses, making the life qi like an army under command and order, immediately erupted with a rumbling sound, and rushed towards the core soul of the undead powerhouse frantically.

Boom...

The breath of life collided into the soul of the undead powerhouse.

"No..." The undead powerhouses let out a huge exclamation, some of their souls quickly detached from their bodies, and some reacted slowly, and their souls were directly polluted by the breath of life, forming the essence of natural life, which fused into the entire main material plane world.

The undead monsters above the war generals in the entire army of the undead collapsed under the attack of the war treants.

There was only a large number of undead monsters below the rank of warlord left here, making the black-robed devil who was secretly observing here from a distant dark place curse in a low voice.

Facing the remaining army of the undead, the War Treeman's gaze first swept around, and he glanced vaguely at the place where the black-robed devil was hiding, and then his body rippled out with a circle of life light.

A huge green giant light and shadow appeared above the head of the War Tree Man, and an incomparably large green sun formed in the sky.

"Damn, it's been discovered!" The black-robed devil who was originally hiding in the dark place in the distance suddenly changed his complexion, and with a low roar, he was about to flee, and his body had already fallen into a translucent teleportation state.

"War Shackles!" An invisible chain of energy came out of the air, directly encasing his body in the chain, blocking the black-robed devil's teleportation spell.

Feeling the shackles formed by the special energy rules on his body, the black-robed devil emitted a huge force and struggled desperately.

But all the efforts were to no avail, the green sun in the sky absorbed all the life qi in the body of the War Tree man, and the natural energy around him was constantly flying in, converging in the green sun.

(End of chapter)