Wuchuan Town, in front of the city gate.

In the sky, Hao Lian Liushui and Lin Yunfeng's sword qi were vertical and horizontal, colliding with each other, and the sky that had been rainy for many days appeared to be rare clear, due to the impact of the sword qi, the air was filled with a strange dryness, and a rainbow was across the sky in the distance, hanging above the sky, and the whole sky seemed to become a huge piece of rice paper.

In Wen Zhiqian's eyes, there were a few small black dots on this piece of rice paper, he had seen these black dots, which were the trap birds that had appeared in the sky over Shengjing City, dark like an eagle with wings, continuous heavy rain, humid air, and the light wings of the trap bird would be contaminated with water mist, which would affect the take-off and flight altitude of the trap bird, and the strategic significance would be greatly reduced. Now in the rare temporary sunny season, Zhang Yuan saw the stitches, and one by one the trap birds took off from the army and flew straight to the sky above Wuchuan Town.

Standing on the head of the city, the defenders of Wuchuan Town looked at the sky from afar, no need to use a bow and crossbow to probe, just a simple visual inspection, the vertical height of the machine bird is above 100 zhang, it happens to be outside the range of the bed crossbow, the horizontal shooting distance of the bed crossbow can reach 100 zhang away, but the vertical range is slightly insufficient, if you want to use the machine bird to conquer Wuchuan Town, in order to reduce the loss of the ground siege, then the machine bird is bound to reduce the flight altitude, as long as you enter the range of the bed crossbow, shoot a few machine birds is not too simple.

As if they knew this, more than a dozen trap birds hovered over Wuchuan Town, scattered around the city, all out of range of the bed crossbow.

"Zhang Yuan, are you trying to spy on Wuchuan Town? Idiot, that's pointless!" Wen Zhiqian scolded.

Zhang Yuan looked up at the sky: "It is said that bad people die because of too many words, and General Ben has not spoken yet, but you are chattering." Hey, poor Wuchuan Town, it's gone!"

As soon as the words fell, the drums sounding in the army intensified, transmitting information, and the dwarfs attached to the bird took out a rough clay pot from their arms, threw it into Wuchuan Town, fell to the ground and shattered into pieces, and blue liquid flowed out of it, and the defenders scattered all over the city possessed to check, boom, boom, Wuchuan Town remembered the continuous explosions, and in a short moment, green flames rose into the sky, dyeing half of the sky, reflecting a strange scene.

"Wildfire ???!!!" Wen Zhiqian exclaimed, looking at Zhang Yuan's eyes full of anger: "You crazy beast. ”

Zhang Yuan grinned: "Yes, it's wildfire, this gift is okay." ”

Wildfire, as the name suggests, is a savage rootless flame found only in the bitter cold of the Far North, which is green, and after squeezing and condensation, it turns into a blue liquid, which needs to be stored in a special small clay pot with rough and patterned walls to increase control over the wildfire. Clay pots are stored in stone compartments, with sand-filled rooms above each one, and in case of danger, they can only be buried with sand and gravel to temporarily relieve the fire and provide an opportunity to escape, as the wildfire will melt the sand so that it can continue to burn. In particular, wildfires that have been stored for a long time, like the weather in June in the Central Plains, can change and are unpredictable, and only need a little light, even the light of a candle flame, will burn. Not to mention that the temperature rises, shaking violently, the clay pot may catch fire on its own, so the wildfire must not accept sunlight, wildfire also has a major attribute, that is, it is lighter than water, will float on the surface of the water paper to burn, once the inside of the wildfire fire, the high temperature will make the clay pot expand violently, causing a large-scale chain reaction, causing immeasurable losses. There was once a poet who wrote poems to describe the horror of wildfires - wildfires burned out, and the spring breeze blew not to grow, only literally it means that the land burned by wildfires, even if the spring breeze blows in the spring of the next year, it will not blow green this land, which means that the wildfires have burned through the fertility and soul of the land, and have become dead land.

Not to mention the wildfire that fell in Wuchuan Town, even the trap bird in the air became extremely dangerous because of carrying the wildfire, bang, the wildfire burned and exploded, and a trap bird almost didn't have time to react, it exploded into a green flame in the air, and fell into Wuchuan Town from the air.

Zhang Yuan was very satisfied with the power of the wildfire, and nodded: "A Wuchuan town, why are you so sworn to defend it? In the past, General Ben didn't understand that retreat was the best way, not only to pull the grassland army into the Central Plains with complex terrain, but also to lengthen the battle line and fight for space, and then there was an idea in his mind, the three major border armies of the Northern Wei Dynasty had the least amount of grain and grass to the Zhenbei Army every year, so they couldn't feed too much military force, and how to resist the grassland without reducing their combat effectiveness? The Zhenbei Army has 10,000 bed crossbows, this is Song Junyi's killer weapon, the general guesses that this 10,000 bed crossbow is in Wuchuan Town, and he is reluctant to discard it, and he is even more reluctant to destroy it, so you swear to defend Wuchuan Town to the death, not to let the 10,000 bed crossbows fall into the hands of this general, and also to fight for the Zhenbei Army for vitality, right. ”

"Put your mother's bullshit, everything is just your Zhang Yuan's imagination. Wen Zhiqian scolded.

"It doesn't matter if it's a fantasy or not, see what other tricks you can have. After Zhang Yuan finished speaking, his face changed, the battle between the two peak masters in the air was about to come to an end, Lin Yunfeng only had one sword left, but after all, there was still one sword, after all, it was a hundred zhang cyan giant sword that couldn't stop Hao Lian's flowing water, and his body fell from the air like a huge stone, smashing heavily in front of Wuchuan Town, directly smashing out a big pit three zhang wide, and Lin Yunfeng was lying there at the bottom of the pit and his life and death were uncertain.

On the ground, Tuoba Longshan's spear whirred with the wind, within the ten zhang range of the three of them, no military broke in, even if there was a person who did not have long eyes to break in, he was strangled by the breath of the collision of the three, Tuoba Longshan suddenly shouted, jumped up in the air, raised the spear above his head with both hands, and smashed it down, the young Zhao Feng was bloodshot and delirious, and he wanted to catch Tuoba Longshan's spear with his bare hands.

Zhang Dabiao's eyes were quick, he grabbed the young man's collar with one hand, and pulled him out of the attack range of Tuoba Dragon Mountain, and he took a spear hard, and flew out and fell to the ground without accident.

Tuoba Longshan held a spear in one hand and slowly approached the two: "I'm sorry, on the battlefield, I can only send the two of you to Huangquan." ”

In the sky, the trap bird continued to spontaneously combust and explode, on the ground, Wuchuan Town also ignited a sky-high green fire, Wen Zhiqian, whose eyes were full of anger, looked at Wuchuan Town, and couldn't help but burst into tears.

With a buzz, the crossbow arrows were fired, and the people flew with the crossbows, and the hundreds of defenders of Wuchuan Town regarded themselves as if they were close to the trap birds, and the light crossbows tied to their arms kept shooting crossbow arrows, either piercing through the wings of the trap birds, or piercing into the dwarf's body.

At the same time, the catapult of the Xiongnu grassland started, and the thousands of pounds of boulders suddenly plunged into the sky, smashing heavily on the defenders of Wuchuan Town who rose into the air.

In front of Wuchuan Town, there is a lot of blood in the sky!