As the purple light slowly rose, the entire mysterious hut was gradually illuminated in purple, and then quickly converged.

A four-in-a-row purple fire talisman was declared successful, but fortunately, the cake-faced futon did not make any mistakes this time.

If he couldn't hold back when he was infusing the purple fire rune with aura, Fu Yun would have no choice but to throw the rune out, and he couldn't let it explode in the house.

Attacking runes, especially fire-attribute attack runes, are very unstable, not only may they make mistakes in the process of drawing runes, but even if the runes are not drawn wrong, the power of the explosion is only large when the aura is too full.

After what happened last time, Fu Yun was not very at ease with the cake face futon, but if you want to make paper artillery, you need to pour a lot of spiritual energy, and you can't complete the work without the cake face futon.

I don't want to think about it so much, so many people are waiting for the chain paper cannon, if you can't contain the aura, it's a big deal to throw it out, anyway, it's absolutely safe for you to be in this room.

Fu Yun settled down, chose a large medium-grade rune paper, and began to draw spiritual patterns on it.

The spirit patterns drawn this time are different from the previous ones, the lines have become thicker and shorter, and the space between the spirit patterns has become larger, and the size of this new space is just the right to print the next four purple fire runes.

Drawing the spirit pattern will not explode and is not life-threatening, but the accuracy of the spirit pattern directly affects the embedding of the rune.

If the gap is small, the runes will not be able to be placed, and if the gap between the spirit patterns is too large, there will be a situation where the spiritual qi cannot be connected.

Even if the size of the gap is just right, but there must be a spirit pattern drawn incorrectly, it will directly affect the use of the entire paper artillery.

This is definitely a kind of meticulous work, which requires a high degree of mental concentration, fingers and wrists must be flexible enough, and arms must be stable enough to not shake around.

As long as you make a mistake, the spirit pattern of the entire paper cannon will have to be redrawn.

Fu Yun is worthy of being a master of imitation, and the regularity of the spirit pattern drawn now looks basically no different from the regularity of the spirit pattern in the Evil Venerable Book, it is simply the same as copying it down.

His method of studying the spirit patterns in two hundred and fifty six small grids and evenly dividing them has magnified all the details on the spirit patterns to the extreme, so that there will be no imitation errors, and the effect is similar to that of direct copying.

It didn't take long for the spirit pattern to be finished, Fu Yun picked up the rune paper and checked it, and then took out the book and compared it, looking at it, there should be no problem, and you can start printing the purple fire rune.

Under Fu Yun's imagination, there were eight gaps on a paper cannon, and four purple fire talismans were embedded in each gap, which could be fired thirty-two times in a row without injecting spiritual energy.

Even if the Evil Venerable was here, he would be frightened by Fu Yun's bold approach.

Fu Yun concentrated all his energy between the seal and the rune paper, and there could be no mistake in the position of each fall.

The four purple fire runes are injected with a large amount of aura when the fourth rune is printed, and the paper cannon is different, and it is when the last purple fire rune, that is, the thirty-second rune, is settled, that a large amount of aura is instilled.

If there was any difference in the previous runes, it would be revealed when the aura was infused at the end, and the thirty-two purple fire runes would explode together, it would be a catastrophe.

The fourth Purple Fire Rune is no problem to be printed, the sixteenth Purple Fire Rune is still no problem to be printed, and the thirty-first rune is still no problem. Before printing the thirty-second rune, Fu Yun stopped first.

The last purple fire rune is also the most critical rune, after this rune is printed, there is no problem in injecting aura, which means that most of the success is achieved, and the rest is the problem of the amount of aura infusion.

Fu Yun shook his somewhat stiff neck and took a few deep breaths. After calming down, he rechecked the thirty-one runes in front of him, and felt that there was indeed no problem, so he picked up the seal and prepared to print the thirty-second rune.

Success or failure in this move, when the thirty-second purple fire rune fell, Fu Yun slightly entered a trace of aura to test first. The aura flows smoothly, there is nothing abnormal, and I can finally rest assured.

Holding the seal tightly in his right hand and placing his left hand on top of his right hand, Fu Yun began to violently pour spiritual energy into the paper cannon.

The amount of spiritual energy that could be stored in the thirty-two purple fire runes was simply incredibly large, even with the assistance of the cake-faced futon, it was a very laborious thing.

Fortunately, Fu Yun's cultivation now mentions the eleventh level of qi refining, and the amount of spiritual energy he can hold has increased, and the meridians have become thicker.

The meridians are equivalent to the pipes that transport the spiritual energy, and if the pipes are not thick enough, even if the spiritual energy reserves are large, the flow speed is still very slow. When the meridians are thicker, the aura can pay attention to the paper cannon faster.

I don't know what kind of treasure this cake face futon is, it seems to contain infinite aura, and it is continuously transported outward without a single break.

After the aura entered Fu Yun's body, it traveled up from the tail lug, followed the Ren pulse and the Du pulse for a small week, and then passed through the arm to the seal from the top, and finally entered the paper cannon.

The process of infusion of spiritual energy through paper artillery is also a process of exercising himself for Fu Yun, and under the washing of spiritual energy over and over again, the meridians become stronger, and at the same time, the body is also nourished.

Reiki can be continuously ingested from the futon on the face of the cake, but people's physical energy is limited, and such a high-intensity work, physical strength and energy are rapidly consumed.

After a while, Fu Yun's body began to tremble slightly, which was a symptom of his physical strength reaching the limit.

The sweat on his forehead slid down his face, and Fu Yun rubbed his chin against his clothes. Paper cannons must not get wet until the Sturdy Runes are activated.

Runic paper things are afraid of water, which is not too fatal weakness, but it should not be ignored.

If someone attacks the paper cannon with a water-based spell before it is activated, it will be easily destroyed.

When the purple light converged, the interlocking paper cannon was finally declared successful.

However, Fu Yun held the paper cannon and did not have the joy he imagined.

The spirit runes are usually packed in a Qiankun bag, and they are only taken out when they need to be used. If it is activated, it will be thrown out directly, and the exposure time to the outside is very short, so there is not much need to think about waterproofing.

But paper artillery is different, it is something to be reused, erected on the wall for a long time, if the waterproof problem is not solved, it is always a hidden danger.

Can I add a water-repellent rune, and if so, where should I add it......

Fu Yun fell into deep thought.