Ackerman jumped off the tower, rushed to the Crusader's quartermaster, and asked, "How much combat supplies and ammunition are left?"

The dwarf, who was the quartermaster, seemed a little stunned by the sound of the horn earlier. After Ackerman asked him a second time, he stammered, "We have about half of the arrows and bullets left, less than a third of the throwing weapons, and a lot of the melee weapons, armor and shields were damaged in the battle and are being replaced... However, the Thunder Beasts still have three rounds of ammunition left for their spore cannons."

As Ackerman listened, he said, "Tell everyone to speed up the preparations!"

Back on the city wall, Ackerman looked into the distance and said to Randall, who was equally worried, "Because of the swarm of undead crows, the Valkyries are unable to conduct aerial reconnaissance, so we may have misjudged the number of enemies."

Randall gripped his sword tightly, nodded to Ackerman, and said, "Our duty is to defend this city; the number of enemies is none of our concern."

Sensing the deeper meaning in the other person's words, Ackerman firmly stated, "That's right, our duty is to defend this city; the number of enemies is irrelevant to us."

After acquiring a brand new battle axe, Carol walked to the city wall and said to the two, "Behind us lies the city of Twilight. There is no other way but to fight."

Seeing the look Carol gave him, Aldenan said irritably, "Don't look at me like that. I have no other choice but to fight."

Carol snorted coldly.

Ackerman walked to the watchtower on the city wall and looked at the increasingly gray sky in the distance, where even the air in the wind seemed to grow heavier and heavier.

A black line slowly filled the horizon.

The line grew longer and wider, like an endless expanse of darkness, swallowing up all the light on earth.

When the massive horde of undead came into view of the Crusaders, almost everyone held their breath.

Amidst the shadowy army of undead, a group of enormous figures, tens of meters tall, were slowly moving towards the city wall.

Having witnessed all this, Ackerman turned his questioning gaze to Randall.

The latter was also shocked: "We've never seen anything like that before!"

These enormous undead, composed of countless pieces of flesh and parasites, stand tens of meters tall and look like walking fortresses on the ground.

It has dozens of thick, arched legs that look somewhat like a keel, and it is covered with tentacles made up of countless undead parasites.

Its head is a giant mouth resembling a volcano, with countless sharp teeth constantly wriggling as the mouth opens and closes.

As these fortress undead walked, they used their tentacles to scoop up scattered corpses and remains from the battlefield and stuff them into the gaping maw of the abyss above their heads.

The sound of chewing flesh and bones was like an echo from hell, sending chills down one's spine.

Surrounding these fortress undead were many bone spike undead and similar high-level undead, which, like mad beasts, kept devouring the excrement that the fortress undead excreted from their bodies, as if it were the most delicious delicacies.

Seeing this, Ackerman turned pale and turned around to order, "Have the Thunder Beasts get ready and await my command!"

This time, the undead army moved slower than the last attack, but its overwhelming threat was far greater than the previous horde.

Seeing the undead army enter the artillery barrage, Ackerman fired a signal arrow into the sky, giving the order to fire.

Dozens of spore shells landed among the undead army. Amid the violent explosions, the slow-moving and massive fortress undead became the primary targets.

After the smoke cleared, Ackerman once again surveyed the battlefield.

Two Fortress Necromancers were hit by artillery fire and sustained varying degrees of damage.

One had lost a leg, and the other had a huge wound on its front.

Ackerman's joy did not last long. The two wounded fortress undead lay sprawled on the ground, their countless parasitic tentacles reaching out and burrowing into the earth.

As if drawing nourishment from the ground, the fortress necromancer's wounds are healing at a visible speed.

Before long, the two undead finished repairing themselves and continued to slowly move towards the defensive line.

Ackerman was so shocked he couldn't speak until Randall reminded him, "The undead army has entered the firing range."

As the undead army drew ever closer, Ackerman fired a second signal arrow, issuing the order for swarm fire.

Arrows, fireballs, ice spears, and lightning bolts rained down on the undead army, and undead fell one after another.

Just after Ackerman shot down a bone spiked undead with an arrow, he witnessed an incredible scene.

A fortress undead not far from the bone-spiked undead stretched out its tentacles toward it.

The tentacles pierced the body of the bone-spiked undead. After a moment, the bone-spiked undead slowly got up, and even the wound on its head was healed.

However, something even more shocking happened to Ackerman.

The massive undead fortresses slowly came to a stop about two hundred meters from the defensive line.

Like buildings, they slowly bent their legs and landed on the ground.

The enormous, constantly writhing mouth seemed to be ruminating on something.

With a muffled thud, a sphere of corpses, more than five meters in diameter, shot out from the giant mouth of the fortress undead, landing in the Crusader's defensive line like a catapult attack.

The corpse ball crashed to the ground, creating a huge gap in the city wall.

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