The northern part of Hogsmeade is a towering mountain with a sweeping view of Hogsmeade and its surroundings, and if the hill is good, you can even see Hogwarts Castle and the Great Lake at the same time.

In the past, when Zhang Xu was an acting professor, he often used his privilege to run out on weekends to practice landscape painting in this small place with a view of the mountains.

At this time, such a place where you can have a bird's-eye view of the overall situation, as the side defending Hogsmeade, naturally will not miss it.

SO WHEN ZHANG CAME HERE WITH HIS SISTER PHANTOM SHIFTER, HE FOUND HIMSELF STANDING BEHIND A "FRONT TOARD ENEMY".

Then Zhang Xu and Wales were given several wands and a B31 — well, MP5 — to the onlookers.

The Ministry of Magic and the government army set up a secret observation post here, and as a result, Zhang Xu broke into someone else's defensive circle at once. If they weren't wearing Death Eater uniforms, they would have been set on fire.

But everybody's on their own, and that's easy.

Wales showed his papers to the second lieutenant in charge of the government army, and they lowered their guns.

And Zhang relied on brushing his face to get through. Now that the north of Scotland is quite cold, the summit of the high mountains has dropped below freezing, and the north wind from the Arctic Circle makes it natural for the Aurors who have just joined the work to stand guard in this cold dog-like place. And these Aurors, who have just joined the work for a short time, naturally know Zhang.

After some communication, Zhang Xu allowed him to observe the battle here as an observer of Hogwarts.

The observation post is a half-buried bunker built on top of a hill, topped by a rocky roof, and surrounded by a ring of windows for outward observation. From a distance, you won't be spotted at all.

At the same time, a cold north wind poured in from the observation ports around it, and it was not much warmer to stand here than it was outside.

So Zhang Xu changed into his Hogwarts robes, and then inserted a heating card, so as to avoid the end of freezing hands and feet. Less than a minute later, Wales spotted the humanoid stove next to him and naturally pasted it.

Looking into the distance, I could see through the telescope that a number of Death Eaters had gathered in the clearing south of Hogsmeade, and I could see that they were organizing their ranks.

"If you put in an AS90 self-propelled artillery battery for rapid fire now, we can have lunch in peace." Zhang Xu said to a government soldier wearing a SAS armband not far away.

The soldiers who were reporting the situation of the Death Eaters to the command did not have a chance to Zhang Xu, but instead stuck to his side to keep warm, Wales, said: "According to the latest agreement, we cannot use thermal weapons on a large scale at this time. ”

Zhang Xu looked at Wales with some surprise and asked, "Why don't you use a method that can reduce casualties a lot?" ”

"I'll talk to you tonight." Wales said to Zhang Xu "softly".

And Zhang Xu felt a few jealous and envious eyes fall on him at this moment, and Zhang Xu, who had a black line, almost reached out to pinch her to retaliate, and it was not necessary to report to the superior leaders in a roundabout way.

At this time, the first Death Eaters down the hill had already begun to set out for Hogsmeade, and their mission was to disrupt and interfere with Hogsmeade's defensive magic.

The Stronghold Defense Magic System can be the "Flower of Magic" in the wizarding world, and it is one of the indicators of a country's level of magic.

Unlike applying magic on an item, defensive magic in an area is mainly composed of several nodes of mana, through which the mana flows regularly through each node, so that the magic power forms a magical effect.

In the Eastern spell system, such a magic node is the "array eye", and defensive magic can be said to be a variety of formations.

In this respect, the basic principles of Eastern and Western formations and area defense magic are similar, except that the development direction of the technology tree climbed on top of it is different.

However, the defense of the important place does not rely on a single function of defense magic, and a variety of defense magic works together to achieve the purpose of defending against the enemy.

In this way, the mutual interference between defensive spells has become the biggest problem in building a defense system.

Just as the electronic devices on a modern warship interfere with each other, the more powerful and sophisticated the defensive magic is, the more interfering with each other. If this problem is not handled well, the power of the defense magic will be reduced or even the time limit due to mutual interference, and the worst will be directly exploded.

Therefore, solving the problem of interference between multiple defensive spells requires an extremely deep knowledge of magic, as well as an extremely in-depth study of the defensive magic used.

Fortunately, Dumbledore was still alive when Hogsmeade's key defensive magic system was arranged, and thanks to his efforts, Hogsmeade was not breached by the Death Eaters led by Voldemort during the first counter-encirclement.

In order to break the defensive magic, the available means are to attack it with high power or a large number of spells, so that the magic of the defensive magic is exhausted or collapses due to a short period of local overload; Or just find the location of the mana node and destroy it; If the level of magic is advanced, you can sense the flow of mana of defense magic on the spot, and then use your own mana to interfere with the flow of mana of defense magic, just like shorting somewhere on the circuit board, and as soon as there is a problem with the key position on the board, the board will not be usable.

The first people sent by the Death Eaters were tasked with cracking Hogsmeade's defensive magic, either by attacking to find out what kind of defensive magic was or by finding ways to interfere with and destroy defensive magic.

Hogsmeade's defensive magic is not small, far beyond the range of ordinary spells.

And the Aurors guarding Hogsmeade were not eating melons and watching the Death Eaters crack the defensive magic there, as could be seen from the observation post, a group of Aurors had assembled at the edge of the village with the help of the cover of the house, and were preparing to launch a wave of counter-charge.

"Huh?" Zhang Xu, who had observed an unexpected situation, let out an exclamation as he saw several spells shoot out of the house on the edge of Hogsmeade, and then accurately hit the Death Eaters who were several times the range of ordinary wizard spells, and the Death Eaters who were hit by those spells immediately fell to the ground and died.

Over the next few minutes, the house continued to shoot ultra-long-range spells, and although the interval between these spells was much longer than usual, many Death Eaters fell under these spells.

Just as the Death Eaters wavered, the assembled Aurors charged at the Death Eaters.

Zhang Xu thought of a report he had read before, then stretched his head to the side and asked softly in Wales' ear, "This is your magic sniper?" ”

Wales nodded, but she accidentally let her ear touch Zhang Xu's mouth.

Zhang Xu just wanted to tease her, but he suddenly stood up and listened to the back for a while.

"Someone came up from behind, about ten people, friendly or enemy?" Zhang Xu asked the Aurors and government soldiers on the side.

To save his life on the battlefield, it is necessary to see and listen to all directions, just now Zhang Xu imposed a "tailwind ear" on himself at the beginning, so he found the footsteps climbing the mountain on the rear slope at the first time.

"It's the enemy." After confirming with the command that no reinforcements had been sent, the communications officer in charge of liaison at the observation post said.