The sudden change, like a pot of boiling water, was poured into the boiling oil.

The huge explosion sound, the dazzling firelight, the rising smoke, and the faint tremor under the feet made the tourists who were still in the Fire Dragon Park stay in place.

What exactly is this situation? A prank in the park? New show? still is--

"Enemy attack!"

On the glass trestle near the tourist reception hall, Neville was the first to react.

He was reminded by Clark in advance that at the first moment of the explosion, because of his keen perception of danger, he firmly grasped the handrail of the plank road in the direction of the rock wall.

These sturdy railings are deeply plunged into the rock wall, and at this moment, even because of the explosion, the trestle bridge is twisted and skewed, but it has not fallen off.

After the explosion subsided, the disgraced Neville reacted very quickly, pulling out the sword from his waist with a "swoosh".

The sword made by the goblin shone with a cold, cold light, "All members of the **** team move closer to me and prepare for battle!"

Neville held his sword high, his angular face full of seriousness.

Just before he could gather his hands, a meteor flew out of the dusty ruins of the reception hall and rushed straight to the sky of the dragon farm.

That is--

Neville's eyes widened, trying to distinguish what it was, and the next moment, the meteor suddenly swelled.

A huge, crystal clear, peculiar bottle that seemed to be carved out of high-quality transparent crystal appeared in the sky of the dragon farm.

The shape of the bottle is very strange. The mouth of the bottle extends infinitely outwards, and it goes around in a circle. From some unknown space, it drills into the interior of the bottle, and then connects with the hole at the bottom of the bottle.

As a result, the entire bottle has no "head" and "tail" in the conventional sense, and there is no concept that an object should have - "edge".

It has only one face, and if a fly is inside the bottle, it can fly directly to the outside without going through the face, because it has no distinction between inside and outside at all.

"This is - Klein's bottle!"

Clark, who was attracted by the explosion and ran out of the theater, looked up and saw this strange giant glass creation.

Do not! Maybe it wasn't a glass creation at all, and Clark could smell a hint of space from it.

Just what is this thing used for, who are the people who attacked Fire Dragon Park?

And soon, the huge Klein bottle showed its function.

Accompanied by a crackling crackling sound, countless crystal clear glass fragments that seemed to contain countless faces shot out of the Klein bottle and merged into the sky of the dragon farm.

At this moment, the magically created sky seemed to be higher and farther, almost no different from the real sky.

Clark saw a wizard beside him casting an Apparition Charm.

However, I saw him turn around in place, his whole body collapsed and condensed, as if he had got into some invisible pipe, and then he got out from another place not far away in the next moment.

Apparition spell failed? !

No, the wizard did not lack arms or legs. The spell was successfully cast, but the entire space of the dragon farm was manipulated by the Klein bottle just now, so he turned around and returned to the original place. land.

And this is precisely the characteristic represented by the Klein bottle—a non-orientable two-dimensional compact manifold that can truly be expressed in four-dimensional space, that is, an infinitely cyclic surface.

This "bottle" was first discovered and named by the famous German mathematician Felix Klein in 1882.

In the Muggle world, this is just a mathematical surface model that exists in the concept, but no one knows who has refined it with the alchemy method of the magical world.

Therefore, this thing extracts the "cycle" concept of "Klein bottle", turning the entire dragon farm into a space that is independent of the world and circulates inside and outside.

This is also the reason why the wizard just now couldn't use Apparition to leave.

"This is troublesome!" Looking at the scene in front of him, Clark's heart sank.

To be able to use this kind of magic props in a closed space, the attackers must not be simple characters, and they may even represent a certain force.

He couldn't care about Black and Peter Pettigrew either, his whole being like an arrow from a string, galloping towards the place where the explosion happened.

Tourists staying in the park at this time were also panicked by this sudden change.

On the crowded commercial street, the cries of children, the shouts of adults, and the quarrels caused by pushing each other, rang out in a mess.

Twelve years of peaceful life are neither long nor short.

Many of the adult wizards present are almost forgetting the dark and turbulent era more than ten years ago.

So in the face of such an unexpected situation, they panicked and didn't know what to do at all.

Clark opened the way directly with psionic power, controlled those passers-by to make way for him, and rushed towards the halfway up the mountain at the fastest speed.

At the same time, he did not forget to order those park employees to evacuate tourists to the store quickly to prevent a stampede accident and cause greater losses.

Fortunately, not everyone is so useless. On the way to the scene of the incident, Clark also saw some daring wizards, as well as some senior Hogwarts students, all holding wands, just like him. The crowd marches forward.

It's just that they are still a long way from where the explosion occurred.

At this time, halfway up the mountain, although he didn't understand the use of the huge glass bottle the other party was using, Neville still didn't dare to take it lightly.

All fighters should not be indecisive, so he couldn't wait for the other security personnel to get closer, so he took the sword and got into the smoke.

As we got closer to the ruins of the reception hall, the glass plank road under our feet shook more and more, as if it would collapse at any time.

However, Neville, who was walking on it, was walking on the ground, with magical brilliance flashing on his body, and he was covered with layers of magic shields.

Just as he was about to approach the reception hall, a warning omen flashed in his heart. [Deadly Fighter] gave an early warning, and Neville leaned over and rolled, avoiding the sharp cold light passing overhead.

"A child?"

Neville, who flipped somersaults, bounced off the ground with his long sword across his chest, facing the incoming enemy in the easiest position to exert his strength.

On the trestle bridge not far in front of him, a tall and mysterious man in a black cloak was standing there.

The sun's rays pierced through the smoke, casting beams of bright yellow light, and Neville noticed them.

The mysterious man in front of him had slender limbs and a sturdy physique, and the loose robes were uncomfortable and tightly wrapped around him.

On the exposed hands, dirty fingers had long blue-gray nails, which looked like sharp claws made of steel, with a dangerous cold light.

It was just this person who attacked him with a sharp claws.

"You are the only little guy guarding such a big place?"

The mysterious man lowered his head, and his face was hidden in the shadow of the hood. He clearly did not move, but Neville's vigilance was raised to the highest level. He felt a dangerous aura from this man.

"To deal with you, I am enough alone!"

In the face of danger, Neville's voice was still full of firmness.

When the mysterious man heard the words, his whole body shook with excitement, and he raised his head and let out a long, ear-piercing roar, like blowing a rusty horn.

The next moment, he bent his knees and squatted down, his slender legs kicked **** the ground, and then, like a cannonball, he directly smashed the thin dust in front of him, and rushed towards the little guy holding a long sword in front of him.

boom!

The toughened glass, which was hard enough to withstand a dozen people walking on it, let out an overwhelmed groan under the stomping force.

Neville erected the sword by feeling, and before the sword could be deployed, a majestic force had already passed from his sword.

That force is not ordinary brute force. It is clearly mixed with several different strengths and strengths in different directions, which converge and spread out.

It is like a whirlpool in the sea, the sharp teeth of the beast, in the process of biting, twisting, pulling, and swinging, it will not stop until it bites a piece of meat from the target.

He took a closer look, and it turned out that his long sword was actually firmly grasped by the opponent's hands. The blue-black nails and the bright sword body scratched each other, and they sputtered out dark red to get sparks.

The other party is preparing to surrender his weapon empty-handed first!

The powerful force turned the sword in Neville's hand into a madly writhing big fish at this moment, as if it was about to break free from his hand.

However, this mysterious man just treated him as a child, which was really a miscalculation. He didn't know that this honest and honest boy in front of him was the only [Australian Knight] in this world.

His own strength attribute is not low, not to mention the ability to cast spells...

With Neville's loud shout, his whole body quickly swelled in a circle under the blessing of [Enlargement]. His broad shoulders and strong back muscles quickly formed a perfect inverted triangle.

So in the feeling of the mysterious man, the big fish that was about to be tamed in his palm instantly solidified and hardened, and turned into a heavy and steady mountain, like a steep mountain standing still on the vast plain, which could no longer be shaken. cents.

"not good!"

The mysterious man's reaction is not unpleasant. His life and death in the dark world all year round, coupled with the magical power endowed by his special bloodline, has already made his intuitive ability to perceive danger to an extraordinary level.

Compared with him, the so-called special forces kings in the Muggle world can only be regarded as younger brothers.

However, even so, the fairy sword in Neville's hand twisted it hard before he let go.

"what!"

The mysterious man let out a miserable cry, and his ten slender fingers, accompanied by the stench of blood, fell into the dust like this, dyed with a layer of pale white.

You have to be Li Jing if you want to pick up the blade with bare hands.

If it was Clark, this rant might have been said long ago.

However, now the mysterious man was facing Neville who didn't like words, so when he retreated and ran away, Neville who casted the [Sole of Oil] spell on himself chased after him at a faster speed.

Then the bright and cold light was shining, and the mysterious man didn't even have time to say a word. The whole person passed by Neville, and then the hooded head rolled on the ground a few times, stopping. Beside a pair of worn cowhide boots.

"Useless garbage!"

The owner of the boots kicked the unwilling head away in disgust and spat on it.

Neville, who had just disarmed the spell and returned to his normal body, saw that the other party even had accomplices, and after beheading the enemy, he didn't care to adjust his state, and quickly stepped back, away from the comer.

During this process, the newcomers didn't pursue them either, and there were footsteps coming from behind Neville, and some of the park guards who had just left behind finally arrived.

With seven or eight weapons-wielding companions as backup, Neville's courage was immediately enough.

He pointed to the front of his sword and stood there, looking at these new attackers, about seven or eight people, and asked loudly, "Who are you? Why are you attacking here?"

The leader of the group was the big man in cowhide boots. Facing Neville's questioning, he lifted his hood, revealing the vicious face below.

"I smell that sweet smell in the air," the man shrugged, as if he was smelling something in the air, "it's the smell of a child's body, it's really pleasing!"

A member of the team standing behind Neville saw the grey hair and beard on the man's face tied together, blue-black eyes with more white than pupil, plus the scar under the left eye, and a grin. At that time, the sharp teeth that were exposed were instantly combined with a certain image in his memory, and he recognized him.

"You are... Greyback... Fenrir Greyback!"

The child's voice was still trembling, and the name was so familiar and terrifying to the children of the magical world.

Fenrir Greyback, the most notorious and cruel man in the British wizarding world.

He is a werewolf, a dark creature discriminated against, hated and ostracized by wizards.

Wizards call him a filthy corrosive animal, a hairy monster with a low IQ, but at the same time they are extremely afraid of him~lightnovelpub.net~ Because Fenrir Greyback's philosophy is: "Blood is for werewolves. Deserved, werewolf should take revenge on normal people."

He made biting and infecting as many people as possible as the goal of his life, and wanted to use this method to create enough werewolves to conquer wizards.

And one of his most criticized points is that he likes to bite children specially, and then let these children grow up in an environment far away from their parents, grow up with hatred of normal wizards, and then spread new fear and despair.

Obviously, such a guy who is known for his cruelty and evil, who specializes in spreading fear, has now come to the Fire Dragon Park for children's entertainment.

"It's troublesome now!"

Neville's mouth was full of bitterness.

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