Battle for Northern Frontier: The game begins with the grassland woman buying him.

On the ground, near the west gate of Wolf's Lair.

"A whistle? Where did that whistle come from?"

A centurion in charge of the west gate's defenses pricked up his ears in surprise and uncertainty.

The whistle was extremely faint, as if it came from the depths of the earth, yet it was particularly abrupt in the night.

Almost simultaneously, a thunderous roar!

A series of explosions and burning sounds came from deep within the fortress, near the central area.

Immediately afterwards, a thick plume of black smoke, mixed with a strange, sweet aroma and the glow of fire, billowed out from several wells and ventilation gaps. This was the poisonous smoke released after the bewitching smoke was ignited.

Chaos erupted instantly on the field: "Fire!" "Poison in the water!"

"Cough cough cough!"

Screams, coughs, and running sounds echoed throughout the fortress.

News of the water source contamination spread rapidly, completely breaking down already tense nerves.

Many soldiers who were resting or on guard duty inhaled the toxic fumes and immediately became dizzy and weak in the legs.

At the entrance to the abandoned underground passage, Li Ergou and his assassins, disregarding the pervasive toxic fumes, were frantically hacking and ramming the massive stone slab blocking the abandoned door from the inside with crowbars and battle axes.

"One! Two! Three! Crash!"

Together, the group grabbed a sturdy wooden stake they had found and slammed it against the rock, sending splinters flying everywhere.

The soldiers guarding the West Gate on the ground were completely disoriented by the chaos inside the fortress and the sounds of impact coming from underground.

Hidden in the darkness outside the city, Su Zhan's eyes were sharp as he stared intently at Wolf's Den Fortress.

He saw flames and black smoke rising from the fortress and heard chaos and commotion.

When the crashing sound from underground was picked up, he drew his sword and roared, "Signal's here! Charge! For our Stone City!"

With a loud roar, Su Zhan officially launched the siege.

The eight hundred Ironclad Cavalry, already poised for battle, transformed into an unstoppable torrent of destruction under Su Zhan's leadership, launching a devastating charge towards the west gate of Wolf's Den, where faint sounds of internal impact were still emanating.

The heavy armor rubbed and collided, converging into a symphony of death.

At the same time, Chen Bao, who was facing south, also saw the smoke rising from west gate.

Hearing the thunder of hooves, he instantly raised his weapon and roared, "The Third Master has breached the city! Sons of the Overlord Gang, avenge our fallen brothers! Charge in! Slaughter these wolf cubs!"

The soldiers of the Overlord Gang, who had been holding back their anger all night, roared and charged toward the south gate wall with ladders and battering rams.

The rolling thunderbolts crashed down, and the fierce battle of attack and defense instantly reached a fever pitch.

A deafening roar erupted from inside the west gate.

Under the relentless and frenzied ramming of Li Ergou and his assassins, a gap was finally smashed open in the huge stone slab. Then, several more violent impacts widened the gap instantly.

"Open the door! The door is open!" one of the assassins roared excitedly, pushing the broken wooden planks with his body.

Almost the instant the doorway opened, a terrifying figure rushed in. Su Zhan and his warhorse, leading the charge, were like gods descending to earth, smashing through obstacles and charging into the depths of the Wolf Castle. Wherever the blade pointed, everything was left in ruins.

The battle inside the fortress erupted instantly.

Behind the Ironclad Cavalry were countless Stone City defenders shouting battle cries that shook the heavens.

Only then did the city's defenders react, but they were too chaotic to even form a proper formation. They could only watch as the steel torrent rolled in.

The broadsword in Su Zhan's hand was not swung, but rather struck down like lightning. Wherever the blade pointed, flesh and blood were as fragile as rotten wood.

A centurion, raising his scimitar in an attempt to parry, was cleaved in two, sword and all, the splattered blood covering the horrified faces of the soldiers nearby.

The heavy hooves pounded down without stopping, and the head of another wolf soldier who tried to dodge was crushed into the stone slab.

Then the Ironclad Warriors lowered their spears, and the dense spear tips charged towards the wolf soldiers with immense power.

The wolf soldier at the front was hit head-on, his leather armor shattered instantly, his sternum shattered with a loud crack, and he was sent flying backward, smashing into a group of his comrades behind him. The narrow passageway instantly turned into a meat grinder.

Li Ergou and a dozen or so assassins who crawled out of the waterway rushed out and saw the hellish scene before them.

A smile crept across his face. He had succeeded; he had finally won the gamble on this seemingly impossible path.

Su Zhan, on horseback, coldly swept his gaze over the crowd, then pointed his blade towards the area deep within the tunnel where the screams were most concentrated: "Follow us! Seize the sluice gate, control the granary, and storm the wolf's lair!"

The command was concise, and everyone immediately grabbed their weapons and charged toward the target.

Li Ergou wiped the filth from his face and roared, "Brothers! It's our turn to collect our debts! Come with me and charge in!"

The narrow entrance passage was instantly cleared by the Ironclad Cavalry, and the subsequent infantry surged in like a flood, roaring as they rushed towards Wolfsburg along the main passage.

The chaos inside the fortress was like boiling water, completely exploding.

Many wolf soldiers who inhaled the toxic fumes became unsteady on their feet, dizzy, and even vomited repeatedly.

Panic gripped the defenders like a giant hand, while the thunderous footsteps of the Ironclad Cavalry approached from the northwest, like the death knell tolling ever louder.

"Hold on! Hold the south gate! That's a feint!"

Upon receiving the intelligence, the Black Wolf God roared in fury, shoved aside the guards who tried to stop him, and rushed to the palace gate to look outside.

Everything in sight was shrouded in thick smoke and chaos. The terrifying shouts of battle did not come from the main attack direction of the south gate, but from the west gate.

"The West Gate has fallen! The monsters from Stone City have stormed in!"

A centurion, covered in blood and with his helmet fallen off, scrambled up the steps, his voice filled with terror, "We can't stop them! We can't stop them at all! They're monsters made of iron!"

With a loud bang, a strong ground tremor came, accompanied by the sounds of impact and collapse, seemingly from not far away.

The Black Wolf God's burly body swayed violently as he looked at the menacing Stone City wolf banner, which was faintly visible in the thick smoke and steadily advancing. The last trace of color drained from his face.

It's over. His carefully crafted tortoise shell, the fortress he relied on to buy time, has been pierced through from the inside by Su Zhan's poisonous blade.

The city has descended into utter chaos.

Black Wolf God grabbed the general beside him by the neck: "Where are the reinforcements? Where are the scouts?"

The general trembled with fear, his words incoherent: "No, no news at all... It's completely, completely silent..."

"Useless! A bunch of useless trash!"

The Black Wolf God shoved him to the ground, took a few steps back, and suddenly drew his curved sword from his waist, roaring, "Blow the whistle! Everyone who can move, hold them off! Reinforcements will arrive! Defend the main hall! Defend the granary! Hold on to your last breath!"

The sound of the horn instantly spread throughout the fortress, but the response was not the shouts of the wolf soldiers, but rather more cries and the sound of weapons falling to the ground.

At this moment, Wolfsburg was like a pot of boiling water, and every inch of flesh was writhing in agony as it was devoured by flames and steel.

From the west gate, the roar of steel crushing everything is the main theme.

Su Zhan took the lead, leading the Ironclad Cavalry to completely break through the chaotic area of ​​the city gate and enter the more open alleyways inside the fortress. Their advance inevitably slowed down.

Street fighting is a natural hunting ground for heavily armored cavalry. The sturdy stone houses on both sides of the crisscrossing streets, the occasional arrows shot from the rooftops, and the wolf soldiers who, driven to the brink of despair, frantically rush out of the doorways, grab the horses' legs, and tear the iron cavalry apart with their broadswords, all go completely mad.

But this did not stop the Soviet army from pouring in, and everything inside the fortress was thrown into complete chaos.

Thick smoke and a pungent, intoxicating scent mingled together, permeating every corner.

Meanwhile, Su Zhan's Ironclad Cavalry had already crushed everything. The bluestone slabs were covered in muddy blood, and the spears were like a forest. Every neat thrust brought with it a mass of limbs and desperate screams.

Those wolf soldiers who were driven to the brink of despair and fearlessly rushed out from the doorway or rooftop were cleaved in two by the longswords of the guarding knights before they could even touch their horse armor.

Su Zhan's voice remained calm: "Don't engage in prolonged fighting. The target is the granary and the sluice gate. Charge through."

With his broadsword, he slashed a wolf soldier who was trying to light an oil canister, sending him and the canister flying. The flames exploded in the air before being extinguished.

"Li Ergou, lead the way."

Li Ergou wiped the blood off his face and called out, "Over here."

He was familiar with the map and had personally walked that deadly waterway, leading a dozen or so assassins as the arrowhead, pointing deep into Wolfsburg.

Their daggers gleamed in the darkness, targeting archers in corners and on rooftops that were difficult for horses to reach.

However, the Black Wolf God was not a lamb waiting to be slaughtered.

He has managed Wolfsburg for many years and knows its structure well.

When he fully realized that the West Gate had fallen and his escape route was cut off, a fierce force replaced his current panic.

"Ignite the poisonous smoke and pour all the wolf salt into the central waterway."

Surrounded by his guards, the Black Wolf God retreated to the stone tower in the nearby granary area.

They looked at the scene before them and cried out in terror.

"Let them in, lead them to the barbican, and prepare all the remaining gunpowder canisters. I will burn a bloody path to break through."

The barbican he mentioned was not a true barbican, but rather a sunken stone plaza near the granary, with only narrow passages on both sides for entry and exit, and surrounded by tall stone walls.

This place was a distribution center for supplies, and also the final trap he had anticipated.

At the same time, the sounds of battle were deafening from the west and south gates.

After suffering heavy losses and failing to breach the city walls several times, Chen Bao's Batian Gang and the soldiers of Stone City finally ignited an unprecedented frenzy by taking advantage of the chaos inside the fortress and the news of Su Zhan's breach of the city.

Ladders were erected at the crenellations, and hundreds of members of the Batian Gang, stepping over the still-warm corpses of their comrades, howled as they scaled the walls and engaged in a bloody hand-to-hand combat with the defenders.

Chen Bao's shoulder wound had already reopened, and blood stained half of his body, but he was completely unaware of it. With the steel knife in his hand chipped, he snatched the curved knife from the dead enemy and continued to hack and slash, as if he were a madman.

"Black Wolf God, prepare to die!"

At the heart of the chaotic battle within the fortress, within the city limits of the Black Wolf God, Li Ergou, Su Zhan, and the Ironclad Cavalry were steadily advancing towards the sluice gate and granary.

Although the resistance along the way was fierce, it quickly crumbled under the influence of the poisonous smoke and the crushing impact of the Ironclad Pagodas.

The cloying sweet smell in the air grew stronger, making one's throat itch when inhaled, and even causing a dizzying sensation in Su Zhan's heavy cavalry.

"Report! There's something wrong with this cigarette!" Li Ergou coughed violently a few times, his face turning even more grim. "The toxicity is increasing; they've deliberately released the poison!"

No sooner had the words left his mouth than a strange noise suddenly came from the corner of the alley ahead. Several wolf soldiers rushed out pushing a huge wooden cart that was burning fiercely. The flames instantly ignited the wooden and stone houses on both sides, and thick smoke billowed throughout the street in an instant.

"Retreat!" Su Zhan shouted.

Although the Ironclad Cavalry was powerful, it was hit head-on by the wall of fire in the narrow alley. The horses were naturally afraid of fire, and the formation was momentarily halted.

Although the houses on both sides were not completely affected by the poisonous smoke, thick smoke was still billowing out. Some archers took the opportunity to peek out, and arrows fell like raindrops, clattering and clanging against the thick iron armor. Although they were difficult to penetrate, they still disrupted the momentum of the charge. Some arrows even cleverly burrowed into the gaps in the horse armor or the gaps in the knight's visor, bringing with them muffled groans and screams.

"Defense forces, form ranks and sweep the rooftops."

Su Zhan immediately dismounted, holding a knife in one hand and raising the heavy shield hanging on the side of the horse with the other.

The Ironclad Knights behind him immediately began to follow the plan. The heavy infantry formation eventually transformed into a heavy infantry formation like an iron fortress, with giant shields linked together. Despite the rain of arrows and sporadic bombardments of oil canisters, they slowly and steadily advanced towards the wall of fire.

Li Ergou and his assassins, like eels, used the chaos and smoke as cover to quickly climb the eaves on both sides of the roof using ropes, engaging in deadly close combat with the wolf soldiers on the roof. Each brief flash of the blade was accompanied by a muffled sound and the sound of a corpse falling.

The wall of fire was forcibly pushed aside by the giant shield and hook, and then extinguished.

The cost was that dozens of Stone City soldiers were burned and shot down, but the road ahead was quickly cleared.

Just as they were charging forward, a force suddenly rose up in the square ahead.

"Boom—!"

A deep, muffled roar came violently from deeper underground within the fortress, causing the ground to tremble violently. The stone slabs beneath everyone's feet cracked instantly, sending fragments of rock flying everywhere.

Immediately afterward, in the central area near the sluice gate, a huge pillar of fire, mixed with rubble, water, and thick smoke, shot into the sky. The shockwave from the explosion swept across, throwing several soldiers and wolf soldiers away.

"Basement! They detonated the gunpowder!"

Li Ergou was slammed against the wall by the shockwave, his internal organs churning, screaming hoarsely, his eyes filled with horror.

He immediately thought of the faint smell of sulfur he had detected in the waterway.

The massive explosion not only destroyed the surrounding area but also triggered a chain reaction.

Water sprayed everywhere from the impact of the explosion, scattering like poisonous rain.

Even more terrifying, the explosion collapsed part of the waterways and underground structures, and a huge shock wave, like a black dragon, gushed out from the blasted opening, instantly engulfing the low-lying area and sweeping in more soldiers and wolf soldiers who couldn't dodge in time.

Chaos, unprecedented chaos.

Explosions, toxic water, mudslides, collapsed houses, and burning flames instantly transformed the entire central area of ​​Wolfsburg into a chaotic, swampy hell.

Both sides were caught up in this sudden natural and man-made disaster, struggling and sinking, pulling each other in an attempt to climb to higher ground.

Su Zhan was also shaken by the shockwave of the explosion, but he managed to grab onto a broken stone pillar to avoid being swept away by the mudslide.

He looked up, but his view was blocked by thick smoke and water vapor. The scene in front of him was a mess, and the designated grain warehouse and sluice gate seemed to have been submerged in mud and ruins.

"Clear the high ground, rescue people, and stabilize the situation."

Su Zhan's voice remained calm and steady, like a pillar of strength pressing down on everyone's hearts.