Because of the existence of magic, many times the defense system of the building must take it into account.

Oulu City's Governor's House covers a large area, and it also has another nickname in Oulu City - the Inner City.

The inner city occupies almost an entire street with the gate alone, and a "moat" five or six meters wide has been dug into the other three exterior walls. Not to mention the various watchtowers that dotted the city, the arrow tower on the edge of the wall alone is set up hundreds of paces, and if the city of Oulu is really captured one day, the inner city can hold out for a while.

The inner city itself is divided into a front and a back yard.

The front yard is naturally where many official departments of the alliance are stationed, while the back yard is the office and residence of the leader Tang De.

For the five-ring spell of "Teleportation", the Commander's Mansion complex was designed with in mind.

Not to mention the "flying technique" from the sky, the "stone walking technique" from digging tunnels, and various "exploration techniques", "eagle eye techniques", "sharp ear techniques" and other secret theft methods to prevent them.

It's just that the magic that is defended against has to face the contradiction between the spell's duration, area of effect, and maintenance difficulty.

It's like a hardwood floor in a home, sometimes it's a trade-off for cost, and it's only installed in the bedroom or even the master bedroom.

After many years of operation, the Northern Alliance is not that it cannot be realized, but based on the simple cost performance problem, it has its own focus on the deployment of the entire Commandery.

The most critical first-level defense areas, such as the office areas of key departments and the residences of the commanders, are naturally means to prohibit transmission and exploration.

As for some open-air courtyards and ordinary corridors, they are simply deployed to detect and transmit means.

Once someone teleports in and triggers the "Spell Monitoring Network", the resident mage regiment stationed in the Consulate will coordinate with the guards to round up and arrest them.

In his previous life, Zhao Xu relied on Frey's recommendation to participate in the defense system of the Commander's Mansion.

At that time, when Wang Ningwei attended with the Earth Mission, he was acting as a security guard, and he watched in amazement from the audience.

Naturally, Zhao Xu also knew the weaknesses and flaws of this incomparably huge "Spell Monitoring Network".

The first point is the "intermission" of the regular restart of the spell network, and he can't wait for it now, so he naturally doesn't have to think about it.

The second point is its own systemic flaw. Under the huge scope of the "spell monitoring network" itself, it involves the problem of mutual influence and interference.

So there are several key blind spots that are not known.

Even the Mage Association branch of the Northern Alliance couldn't test every corner one by one with all its might, which left a "flaw" in this seemingly inaccessible Commander's Mansion.

Zhao Xu clearly remembered that in his previous life, when he first arrived at the Commander's Mansion, a key "loophole" happened to be exposed.

So for the past few days, the group of them have been stationed 24 hours a day to watch the area, waiting until the mages repair it.

Now at this moment when this point has not been exposed, let Zhao Xu make perfect use of it.

He easily teleported to the basement of the watchtower in his previous life, where he had guarded for three days.

However.

At the moment when Zhao Xu had just completed the teleportation, he heard this cry with a frightened tone, and his whole person tensed up, like a fried cat.

Although the voice sounded somewhat familiar, because of the teleportation, Zhao Xu's vision had not yet recovered, and it was dark in front of him.

Zhao Xu raised the instantaneous scepter in his hand on the spot, twisted his waist sideways, and at the same time aimed the tip of the scepter in the direction of the sound.

It's just that he seemed to be about to cast a spell on the other party, but his mouth was revealing another spell.

"Swift burst."

At this urgent moment, Zhao Xu decided to cast this spell after thinking about it.

He wants to get the inevitable "right to take the lead" and save himself from being attacked in the next few seconds.

In his previous life, he had been paralyzed by being called by his name, and in fact the long sword had been stabbed near his waist.

Zhao Xu had already thought very clearly in his mind, and after winning a marked time, he would wait for him to regain his eyesight and see who the person in front of him was.

If they know each other, then nothing will happen.

If not, it means that he has infiltrated this time and exposed. When the time comes, he will use the spell "Chill Touch" to subdue the opponent, or if there are many people, he will re-use the teleportation spell to escape.

However.

The sense of time stagnation that Zhao Xu expected did not come as promised, and the hands on the mechanical clock were still ticking and ticking relentlessly.

[Adventurer Midsummer, your spell 'Swift Burst' is countered by the target's spell, and you lose the spell.] 】

How is it possible, this incredible thought suddenly popped up in Zhao Xu's mind.

He's completely instinctive!

Ordinary mages want to give up other actions against him unless they start fighting, and concentrate on preparing "counterspells".

Otherwise, when he casts the spell, it will definitely be too late to target it.

But how did the other party know that he had teleported and made such "preparations in advance"?

Slowly, Zhao Xu's eyes gradually opened, and in this dim basement, he relied on the faint oil lamp to barely see the appearance of the person in front of him.

"Whew."

Zhao Xu's heart finally put down a piece of the big stone.

"Mentor Antinoa."

Zhao Xu couldn't help asking, "We should be quite familiar with it, so we won't make a frightened sound when we see me." ”

Standing in Zhao Xu's eyes at this moment was Antinoya wearing a brocade pattern robe and a cloak of dark gold secrets, obviously her skills have improved a lot recently, and the patterns are much more complicated.

Antinoya also looked at Zhao Xu with soft eyes at this time.

"I was thinking that since we had been together again after a long absence, we should show a sense of surprise." Antinoya said.

That's obviously a fright.

Zhao Xu thought secretly, but his mouth was still very honest, "Then I really moved the mentor." ”

"Well, but you're doing well this time. Even if he heard a familiar voice, he made a decisive move first, and did not give up the right to take the lead. With this kind of cleverness, the turbulent city of Oulu will not be so much that I will collect the corpse for you. ”

"Isn't that still a spell countered by you, mentor?" Zhao Xu was also a little embarrassed, feeling that recently, the frequency of Antinoya's praise for him has increased a lot.

"Stupid, you don't want to know who I am." Antinoa snorted.

"Then Mentor, you just countered my spell and used the 'Insight Tactic'?" Zhao Xu couldn't help but ask.

The three-ring spell of insight can last for 10 minutes per level, and with Zhao Xu's current caster level, coupled with a "spell delay" specialty, it can easily break through seven or eight hours.

As long as his three-ring spells are sufficient, he can be used as a resident spell mount.

Insight into the battle method allows him to automatically know that there is a spell cast within tens of meters, and if he has a line of sight to see the other party, he can also know what the spell is through the spell identification.

But the most important thing is that he can choose to dissipate the remaining duration and directly use "free movement" to counter the opponent's spells.

And without "preparing for action"!

Therefore, as long as Zhao Xu has this spell on his body, he is not afraid of being threatened by close-range spells, which is equivalent to an efficient spell radar.

With his "swift burst", he can also fight back a wave of firsts.

It was just a little embarrassing that he tried to take the lead, and Antinoya countered his spell again.

This is also the norm for high-end mage battles, gradually targeting each spell cast by the opponent.

The opponent casts a spell, and his "intuition" action "restrains" this time to cast the spell.

As a result, the other party also "intuitionist" and "restrained" his actions this time.

This kind of back-and-forth nesting doll will often cause the outside world to look like not a second has passed, but the two mages have had dozens of private confrontations.

"The spell you mentioned, once you decide to activate the dissipated energy 'counter-attack', it is only a one-time chance. I'll have to make up for another shot of the 'Insight Tactic' right away, so I usually won't dissipate this spell to counter it. Antinoa explained.

The implication is that Zhao Xu's "spell movements" are not complicated enough to make her need to use backup means.

She has, but it doesn't have to.

"So fierce?"

"Midsummer, your path to becoming a mage is still very long." Antinoa said, "But I can tell you where to go. ”

"Basically, no one will be able to cast a spell in front of me as long as I want to."

Zhao Xu couldn't help but open his pupils slightly.

Each mage can only counter one spell per round.

Therefore, in the mage war, if one more mage gives up casting spells next to him and prepares to act "counter spells", it is also a very disgusting thing.

"Midsummer, you can only counter a spell once per round because you can only 'prepare' once to cast a spell on the next opponent. ”

"Once the other party doesn't cast a spell, then your countermeasures will also be invalid, although the spell will not be wasted, but this synchronization and coordination of the body will also make it impossible for you to cast another spell."

Zhao Xu nodded after listening, the way of action of spell countermeasures is also the reason why spell countermeasures are not common in their low-end bureaus.

"And counter spells, you have to prepare the same spell to counter, generally unless the kind of mainstream spell that everyone prepares, it is generally not good to have a chance to take effect." Zhao Xu said.

However, he also knew that no matter how bad the "Spell Counter" was, it was another solution to the "Mage Cleavage".

It is the equivalent of the mage's almighty "Cancel Spell".

"Mentor, what other advanced ones have special bonuses for spell countermeasures?"

At this time, Zhao Xu couldn't help but think about it.

In the future, if someone tries to cast a spell in front of him, he will not say a word and use magic to counteract.

Without his permission, no one could cast spells.

This is pretending to be invisible.

In particular, Zhao Xu has infinite spell slots, and relying on the "multi-talented spellcaster" and "bizarre seer", he can counter without preparing corresponding spells.

"Hey, hey." Antinoya also smiled smugly at this time, "This is based on expertise. ”

"Expertise?" Zhao Xu was surprised.

Now, he has at least four or five more specialties than ordinary people, which can be regarded as a little more generous.

"Strictly speaking, it's a chain of expertise." Antinoya explained.

"For example, the 'Mastery of Counterspells' specialty can be countered with spells of the same faction with a higher ring, without being limited to the same spells."

"Another example is the 'Passive Counter Spell' specialty, which allows me to counteract when I notice you cast a spell without having to prepare in advance."

"Another example is the legendary specialty 'Legendary Counter Spells', which allows me to counter spells an unlimited number of times per round."

"As for the three I just mentioned to you, they are all progressive, and you have to learn the first specialty before you can learn the second one. Even that legendary specialty additionally requires you to meet the three prepositions of combat anti-*** first attack and spell instant. ”

After hearing Antinoya's mention, Zhao Xu couldn't help but be speechless.

This legendary counter-spell directly requires five ordinary specialties as a pre-requirement, but Zhao Xu has mastered the combat reflex and spell instantaneous spell in it.

On the premise of being able to maintain an unsolvable suppression of the low-ring mage, the cost of its own realization is incomparably huge.

You must know that relying on level expertise, from level 1 to level 20, that adds up to only seven specialties.

However, Zhao Xu still prepared silently in his heart.

It can also be regarded as determining a chain of expertise for the future.

And Zhao Xu thought about it, and also shook his senses, and returned to the original question, "Mentor, why did you appear here?" ”

It is said that because he does not have the spell of "Psychic Barrier", he can't avoid those detection and detection spells, so he can only find the "black spot" that is controlled to infiltrate.

But for Antinoya, even if it is the kingdom of the gods in front of her, she also has the courage to swagger in, and she will not find something like Zhao Xu.

"Didn't I tell you before that the leader of this alliance, Tang De, believes in Grazt?"

Zhao Xu immediately reacted, "Mentor, do you mean to say that there is something strange in the spell monitoring network in this area, and there are traces of Grazt?" ”

"That's right, otherwise how dare I conclude that Donde has something to do with Grazt. Although it was not obvious, I could faintly perceive that these defensive reconnaissance spells were infused with some of Grazt's abyssal divine power. That's why I found out the internal reason for this. ”

"The divine power on the 'Spell Monitoring Network' is extremely weak, and it does not serve the slightest defensive effect, so the priests of Oulu City did not find this. But it was enough to remind Douglazt of any power that had entered here. ”

"If a mage wearing a 'psychic barrier' rashly teleports to a non-critical point with the effect of immunity, although the monitoring spell net will not be noticed, but the Grazt behind the scenes can detect the movement of the net."

Zhao Xu couldn't help but nod after hearing this, Antinoya didn't want to be discovered by Grazt, so like Zhao Xu, he sneaked into this black spot before taking action.

It seems that he came in according to the black dot of the surveillance network, which was really a mistake.

"Actually, I'm pretty weird." Antinoya said, "What is the secret that Grazt is keeping an eye on this ground, and I suspect that it has converted the leader of the Alliance, Donde, into his followers. ”

"Generally speaking, these Abyss Lords develop believers in an effort to be secretive. This kind of lord-level powerhouse is difficult to subdue without breaking through the weakness of the soul. Even if they succeed, they can be easily exposed. ”、

"Or if you don't want to expose it, you have to spend more resources on Grazt, which is not cost-effective."

Zhao Xu nodded, and he also thought about the internal level reason.

The thoughts in my mind slowly led to the "Demon Sealing Battle" in the previous life that affected all the forces north of the entire Ice Fields Mountains.

The original cause of that war was the countless "portals" that directly communicated the abyss and purgatory.

The strong people in hell, the Deep Hell Purgatory, do not have the ability to teleport from the other world, and if they want to get to "Arthur", they have to rely on the "Prayer Technique" that is a chance once a year to simulate the "Otherworld Teleportation" spell.

If you want to go back afterwards, you have to wait for the cooldown of the "Prayer Technique" to recover next year.

For the lower levels of demons and demons, coming to "Arthur", where delicious souls can be seen everywhere, is a more desirable but unattainable thing.

"I said it was for you to detonate this, as a reward for the 'Howard Luxury Bunk' and the 'Ascension Cross', but I still have to lay it out here after all."

"I don't want your soul to be swept away by the abyss, when I came to the door to ask for my soul, it would be really humiliating to die."

Zhao Xu's mouth opened slightly, but he didn't expect Antinoya to disappear in the battle, so he first buried his hands for coming here.

Antinoya frowned slightly, "I'm going to ask you about Midsummer." ”

"I directly found the 'Spell Defense Deployment Map' of this Commander's Mansion, and then I did some mental calculations, deduced a few of the flaws, and found this kind of infiltration point."

"What about you?" Antinoya looked at Zhao Xu with interest.

"How did you know that teleporting to the basement of this watchtower would not be discovered?"