Shelter, on the open ground.

Lin Yi stroked his chin.

Given that the 'Master of Archery' skill absorbs the 'Archer' skill,

as long as Da Chuan is given the right skills, his new skill can start at level 3.

"Boss? I'm here!?"

Da Chuan said, as suddenly a book was thrown at him, which he almost failed to catch.

"Boss?"

"Read it, then activate it."

"Huh?"

Da Chuan started to worry, but when he saw the name of the skill, he was so excited he almost cried.

"Boss! I love you!!"

Da Chuan shouted, then immediately learned the skill and activated it.

His body was covered in scales, and this transformation not only affected his skin, but also his clothes, which seemed to fuse with his flesh, forming a metal surface.

His arms and legs lengthened, his joints grew larger, and deadly claws extended from his fingertips.

Da Chuan went down on all fours.

After his limbs transformed, his torso also began to elongate, arching and undulating with the surge of power.

His head flattened, his heavy jaw and brow bone bulged, as if about to burst through the skin.

A wave emanated from his back, and two fleshy protrusions sprouted from his spine, like branches growing leaves.

The "leaves" continued to grow larger, their outlines becoming more terrifying until they suddenly unfolded.

Inside these protrusions, bones and muscles were shaped, trembling as they stretched into enormous wings.

Da Chuan, at level 9, so the transformation skill was only at level 2, but even so, his body was larger than an armored tank, with a wingspan of ten to fifteen meters.

"Ahhh!"

Da Chuan, the Western Giant Dragon, roared, then flapped his wings and took off.

At first, he flew clumsily, almost falling, but then he dove down, performing several complex maneuvers in the air.

"Can you breathe fire?!" Lin Yi asked.

But Da Chuan flew too high, unable to hear him, so he grabbed a loudspeaker, took a deep breath, and repeated his question.

"Hey! Can you breathe fire or not? Answer me, don't force me to become a Dragon Slayer Warrior!"

Da Chuan heard his boss's words, the dragon body shuddered, and he immediately landed, reverting to human form.

"Boss, I can't breathe fire..."

"Hmm... what if I do this?"

Lin Yi took out a Fire Magic Book and tossed it to him, and Da Chuan quickly learned the magic.

"The system says I can turn the dragon into a Fire Dragon. My physical attributes will decrease, and the dragon skill book can be learned again."

"What are you waiting for then? Do you want to breathe fire from high above roasting enemies, or engage in close combat with hordes of zombies and mutants?"

"Breathe fire!" Da Chuan answered immediately.

Lin Yi nodded in satisfaction. With a Fire Dragon on their side, their 'hit and run' tactics would be more effective!

Da Chuan activated the skill and instantly transformed into a dragon.

But this time, it was a different dragon.

This dragon's red scales shimmered in the sunlight, its clawed wings quivering with excitement, revealing deeper burgundy areas at the joints.

The dragon was not as huge, but more elegant.

Its neck arched majestically, topped with a more beautiful head, adorned with two intimidating horns.

This lizard's tail was longer, its scales reflecting various deep red lights, standing upright like the quills of an angry porcupine.

Despite being smaller, the dragon's wings were longer, its bones slightly finer to compensate.

The red glow of this beast was dazzling, and the sound of its claws scraping against stone was jarring.

The Red Dragon took flight.

It soared to a hundred meters high, then blasted a flame that could likely obliterate a hundred zombies and mutants in seconds.

Lin Yi decided to conduct some experiments with equipment, he asked Da Chuan to try on various kinds of armor.

Ultimately, they found that wearing Power Armor made his bones harder, the scales more durable, and magical enhancement equipment was effective on this dragon too.

The accessories would alter its horns, adding patterns or twisting them, while a Mage Pendant would grow a third horn on its snout.

Melee weapons would change the dragon's claws, teeth, and spikes.

But the Light Beam Sword had no effect.

Lin Yi asked Da Chuan to gain experience to level 10, and then returned to the Treasure Room himself.

"So skills can be combined… Da Chuan is living proof of that."

Lin Yi took out one copy of each Skill Book and placed them in front of him.

He began selecting skill combinations for future tests.

Firstly, he wanted to know if it was possible to create a new kind of magic.

There was Water Magic and Ice Magic.

Then combining them… and Earth Magic with Fire Magic…

The possibilities were endless.

Then he laid out the skills that affected physical attributes, setting them out on the table one by one.

There were many of these skills, in his view, they were mostly useless.

So he only focused on those "extreme" skills.

These skills all have "extreme" in their names: Extreme Power, Agility, Endurance, and Extreme Vitality.

But as soon as he put these skills together, a prompt reacted.

[Do you want to combine:

"Extreme Power", "Extreme Agility",

"Extreme Endurance", and "Extreme Vitality"

into the rare skill "Extreme Constitution"?]

"Combining three common skills and one rare skill into a rare skill? It's not very economical... but let's give it a try..."

The four books began to glow, and after a while, they fused together.

[Rare Skill Book: Extreme Constitution]

A skill gained by combining other skills.

"Extreme Constitution" can increase all basic physical attributes by 10% without changing the user's appearance.

"The increase isn't much... but at least it won't change my body. I don't want to turn into a muscle-bound hulk, learned it!"

This skill only boosts combat attributes, so the effect isn't very obvious: Power and Agility each increase by 2 points, Endurance and Vitality each increase by 1 point.

He still has enough skill books to combine four more skills.

He gave one to Xiaochuan, one to Da Chuan, one to Solomon, and kept another for emergencies.

Lin Yi summoned Fire Magic Squad Leader Piero to his side and taught him Earth Magic.

As a result, he discovered that combining Fire and Earth Magic created a new skill called "Magma Magic".

After testing the new magic, Lin Yi found that Magma Magic consumed a large amount of Magic Power.

But the magma was extremely hot, and if a Level 1 mutant or any other enemy fell into it, they would be evaporated in seconds, or maybe even faster.

Magma Magic cannot be upgraded because its level is calculated based on the formula (Earth + Fire) / 2...

After experimenting with Magma Magic, Lin Yi summoned Wind Magic Squad Leader Joe.

When he combined Wind Magic and Lightning Magic, he got Storm Magic. But when he combined Water Magic and Lightning Magic, he got nothing.

In general, after trying to combine different types of magic, their power is only half of the original magic skills.

But Lin Yi is not annoyed, they are fighting a war and need a variety of tactical advantages!

For example, Steam Boiling Water Magic, obtained by combining Water Magic and Fire Magic, where the steam can be used to create a smoke screen and the boiling water can scald enemies.

...

While Lin Yi was busy experimenting with skills, Hubert gathered all the new soldiers together, including new recruits from Lille and a dozen Elves.

He played a long video on a big screen showing the city of the Lord from the Wandering Island and the immense horde of zombies.

After watching the frightening scene for a minute, the video switched to a series of battle clips, concluding with the final duel—

where Lin Yi decapitates the Zombie General.

"Now do you understand what you will be facing?"

Hubert slowly said, pausing so Regina could translate for the Elves and Solomon could translate for the bunker's residents.

The morale of each new member dropped.

At this time, the former underground shelter's security chief, Agdandur Susin, spoke up.

"It's terrifying... but can you tell us, how many casualties did you have?"

"Under the Boss's leadership, the shelter had about thirty deaths or serious injuries."

"So you killed between 500,000 and 1 million zombies... and your casualties were less than thirty people?"

Agdandur asked again.

His words put a smile on every new arrival's face.

They ignored the most crucial point:

The Boss led the Shelter to victory!

"That's right."

Hubert smiled, waiting for it.

"The Boss had us set fires and burned all the forests where the zombies hid, luring them out, and then wiped them out.

As the battle drew to a close, we built a multi-layered defense system on a destroyed mountain in the island's center to lure the remaining enemies out and eliminate them."

Hubert showed them slides of Lin Yi's final defense stage layout.

Including anti-tank hedgehogs, portable steel walls, truck fortresses, and even Louis's tank.

"But the most important is the reward; after clearing the island, we gained the ability to delay our world's destruction and even create new worlds if necessary.

And that was just part of the reward; in the Sea of Space-Time, victory always comes with generous rewards.

With the current power, the Boss can easily lead us to success even without the help of the Taru Race."

Hubert satisfiedly said.

He achieved his desired effect, even the Elves were deeply shocked.

"Now I will tell you about the Sea of Space-Time, but we don't know much."

Hubert said while switching slides.

The screen now showed an illustration of a cube with a projection of another larger cube above it.

"The Sea of Space-Time is constantly expanding. Don't ask me where it is—no one knows. Its shape is like a cube, expanding in all directions.

"Currently, we only know about four types of objects we might encounter in space-time.

First, the fragments of shattered worlds.

Usually, there are a lot of zombies, but sometimes you can also find sentient beings that survived the destruction of their planet..."

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