After the circle was printed, Noren encapsulated the base of the circle in a black box, took secrecy measures, and then inserted it back into the structural warehouse.

At this point, he has completed the most troublesome step of making the "Engraving Circle" of the magic guide, and this new type of city defense magic guide cannon can theoretically be pulled to the battlefield for actual combat.

However, he was not so stunned that he couldn't wait to show off his brand new invention, but returned to his seat and took a nap.

If the creation of a new rune system can be explained by the dumbfounded reason of "I am a genius", then the high-level magic circle engraved at the speed of light is definitely beyond the limit of human ability.

Only the projection ability of the All-Knowing Book must not be exposed, and he must set aside two or three hours of "drawing time" for himself to let outsiders know that he is at least a human being, and not some kind of monster who has become a sperm.

Of course, it only takes two or three hours to draw a complete high-level circle on a single person, and this kind of efficiency is already beyond the reach of modern alchemists.

Hawkers, let's leave a back here for the time being, and give them a little idea of catching up.

Tonight is destined to be a sleepless night.

Slowly, the sky gradually turned white, and for those who stayed up all night, today was not a new beginning, but a continuation of yesterday's battle.

This is the time when it is most likely to be sleepy, but the defenders on the city walls are nervous.

The steppe army's offensive was very fierce, and from yesterday day to this morning, they had launched a continuous attack for more than 12 hours.

Their hundreds of long-range ballistas continued to fire at the city walls, and dozens of magic chariots were dispatched to assist in the siege.

The shells of these magic vehicles are not only made of alchemical metal, but also have thick armor that can withstand most physical attacks.

It is also equipped with a fourth-order defensive spell "Blocking Barrier", which can resist most spell damage.

It still relies on a few horses to drive the vehicle, but the top and sides of the horse are equipped with protective plates, and it can also be shrouded in a "blocking barrier", so it will not be easily injured.

These long-range ballistas and magic chariots were common siege weapons in the Roland Empire, and it stands to reason that the Lebs tribe, who had been wandering the edge of the empire for a long time, were not in a position to produce these equipment on a large scale.

Obviously, there are forces within the empire that have given them the necessary weapons assistance.

That person is Roderick, the second prince who will do anything to gain the support of other peoples.

With these weapons in hand, the steppe troops sent the shaman and knight to the bottom of the wall, under the cover of ballistas and magic chariots, and under the rain of spells and arrows on the walls.

After arriving at the city, they entered the range of their attacks, either casting spells or using physical siege methods, and various fierce attacks once destroyed the "sacred barrier", leaving mottled cracks in the city walls.

As long as the circle itself inside the wall is not damaged, the "Sacred Barrier" can be restarted an infinite number of times, but there is an interval between each restart of the circle.

Within a few minutes of the restart of the circle, it was the best chance for the steppe people to break through the city.

In order to prevent the destruction of the city walls and gates that had lost their cover, Linfeng City had to send the knights to fight them head-on, and at the same time, several sixth-order mages in the army would also take turns to cast high-level spells at this time to forcibly slow down the enemy's advance.

Although the high-level spells cast by a mage can affect the battle situation to a considerable extent, a sixth-order mage will feel tired when he casts a sixth-order spell at most twice.

Not only does it need to replenish mana, but the consumption of mental power is not small, so it can't be used lightly, so you must carefully grasp the timing of spell casting.

In contrast, if there is a city defense magic cannon, the battle situation will undoubtedly become much easier, after all, they are tireless machines, and they can continue to pour firepower in long battles, and the durability is higher.

At this time, the crossbow arrows and spell attacks outside the city once again brought the "sacred barrier" on the city wall to the brink of collapse, and Ryan stood at the head of the city, and then issued the next order:

"Get the Fifth Squad of the Knights and the Eighth Brigade of the Legion ready, and once the Sacred Barrier is destroyed again, let them go out of the city to meet them, and buy time for the next magic circle to activate!"

"Yes." The adjutant on the side responded, and said, "The fifth squad went out of the city to meet the attack twice yesterday, and the casualties of the squad have exceeded half, do you want to make up for the remnants of the ninth squad as well?" Otherwise, I am afraid that there will not be enough troops. ”

"That's it." Ryan nodded.

The window for the reactivation of the "Sacred Barrier" was the time when the casualties of the two armies were the highest, and in this short one-day siege time, they had already pulled around this window more than a dozen times.

In a battle of such intensity, even the most elite knights had suffered a considerable degree of attrition, and if they continued to fight at this rate of casualties, the city's troops would be exhausted in a few days.

As the besieging side, the number of casualties of the steppe army was even less than that of the Linfeng army.

The main reason for this is that when the steppe people attacked the "Sacred Barrier", the firepower on the city wall was insufficient, and they did not deal a serious blow to them.

And when the two armies briefly engaged in white-knuckle warfare, the average individual quality of the steppe troops was better than that of the Linfeng army, and the battle losses were brought back in one fell swoop.

Losing the five city defense magic cannons, is it really still insufficient to defend the city......

Ryan frowned, and just then, he saw a familiar figure leading several retinues to escort the crates up the city wall.

"Nolan? These are ......" he walked briskly, already vaguely guessing in his mind.

"Well, this is the new type of city defense magic cannon I made."

Nolan said with a smile while instructing his subordinates to open the cargo box, "Fortunately, I did not fail in my mission and made three magic cannons in the morning, and it is expected that by noon, there will be two more." ”

As the cargo box opens, three two-meter-wide mobile turrets come into view.

Compared with the previous fortress-type city defense guns that were seven or eight meters wide, the fort in front of them, which was only two meters in size, was much more simple and simple......

It's a small one, and it doesn't have the momentum that a strategic-level magic guide should have!

Can a city defense magic cannon of this size really activate a high-level spell of the level of "Sky Burning Flame"?

Because it was too different from the impression in the past, even Ryan was quietly shaken in his heart after seeing the real thing.

Nolan thought to himself that he needed to correct everyone's old notion that "big is good, good is big".

"I'm here this time to show you how to use the new city defense artillery."

He instructed his men to push the mobile turret to the edge of the city wall and hold it fixed, and then aimed the barrel of the cannon at the steppe troops below the city.

At this time, the offensive of the steppe people still did not stop, countless arrows and spells shot towards the city wall, and were stopped by the crumbling "sacred barrier", looking down on this battlefield from the city wall from the first perspective, there was really an indescribable sense of urgency and excitement.

He withdrew his gaze and operated the turret while teaching on the spot.

"Well, this is the sight, just put the crosshair on roughly, then open the safety here, and press the switch to activate the circle-"

When the switch was pressed, the base of the gun carriage made a "buzzing" sound, and a large red circle quickly formed in the muzzle.

Feeling the growing power condensed at the muzzle of the cannon, Ryan's eyes suddenly flashed with a fine light.

There will be no mistake, this is the power of high-level spells, and the spells carried by this fort are the real "Heavenly Burning Flame"!

The next moment, under the shocked gaze of everyone on the city wall, the "Heavenly Burning Flame" was fully activated, and a huge orange-yellow tongue of fire erupted from the magic circle.

The surging flames fanned out across the ground, forming a field of fire in an area of hundreds of meters around in an instant.

The steppe troops besieging the city below could not dodge, and were swept away by the flames of the sky's burning flames, and they all rolled to the ground screaming, and in a short time they were burned to charcoal.

There were also water shamans who were accompanied by them who tried to extinguish the fire on their bodies, but how could a sixth-order fire spell be so easy to extinguish? Soon he followed in the footsteps of his companions in the flames.

Wherever the flames passed, only those who hid in the Wizard Chariot in advance could use the "Blocking Barrier" to isolate the flames, after all, "Sky Burning Flame" is not an explosive killing spell, and it is not designed to kill all targets instantly.

But this is only temporary, and the "Blocking Barrier" is just a fourth-order defensive spell that won't last long.

If you don't leave the incineration area soon, the magic chariot will soon melt into a metro of water.

"Woo-"

The horn whistle signaled a retreat, and under the continuous suppression of the "Heavenly Burning Flame", the steppe troops in this area left a charred corpse and retreated backwards with the remnants in disarray.

"It's actually the Heavenly Flame?"

Not far away, Su Yi, who commanded the grassland troops, also noticed the changes on the battlefield, and hurriedly raised his binoculars to look at the city wall.

He wanted to know if it was a spell cast by a sixth-order fire mage in Linfeng City, or if it was released by the city defense magic guide.

There is an essential difference between the two, the number of high-level mages is not large on both sides, and the mages also need time to rest after releasing high-level spells.

But the City Defense Magic Cannon is different, even if the cooldown is counted, it continues to cast spells faster than the Mage.

You must know that it is just an alchemy weapon.

Since there is one, it means that there are many more.

And what he observed in the telescope made his heart sink to the bottom quickly.

The worst happened.

After only one day, the defenders rebuilt the city's magic cannon.

According to what he had observed, these new city defense cannons were different from the huge fortress city defense cannons of the past, and they were also greatly reduced in size under the same spell.

Is this a newly developed city defense weapon of the Linfeng Army?

And most importantly, at this time there was more than one new city defense cannon erected on the city wall.

There are actually three of them like this......

The second watch, there is another watch at 5 p.m

(End of chapter)