The night was so dark that even the stars seemed to be obscured by black clouds.

However, a large number of torches and fires were burned on the top of the city for lighting in battle.

In the firelight, Song Zheng was fighting hard, but his weapons were a little special...... It was pieces of stone.

Due to the large number of undead besieging the city below, there is no need to aim at standing on this wall, and throwing a stone can hit several undead.

Song Zheng didn't need to kill those undead, he only needed to deal a little damage to them to gain a lot of experience, so after the battle began, he had been throwing all kinds of stones in the sea of undead below.

As the battle continued, Song Zheng checked his attribute interface from time to time, and he could see that his experience was constantly rising.

"It's so cool to upgrade like this......" Song Zheng was excited but hoped to upgrade faster, after all, he didn't know how long this Dalong County could hold out.

In fact, in a short period of time, the undead below have posed a threat to the defenders on the city walls several times, especially those ghouls who have been braving the rain of arrows to force their way up the walls.

Every time a ghoul rushes up, it ensues a bloody battle.

Song Zheng couldn't help but be glad that those skeletons were not good at climbing, otherwise once the sea of skeletons, which accounted for the largest proportion of the undead army, appeared on the city wall, he was afraid that he would not be able to kill them all.

After an hour, the soldiers defending the city had begun to show some fatigue, but the undead below did not slow down the intensity of the attack in the slightest.

Song Zheng was tired of throwing stones, but he finally successfully rose to the next level.

However, when he couldn't wait to check out his newly acquired skills, he couldn't help but be speechless.

"Stuffy Stick...... Is this also a skill? Even if you don't learn it, I will......" Song Zheng couldn't help grinning as he looked at his newly acquired skills.

This kind of thing can be done without a teacher, and it doesn't help in battle, which is tantamount to wasting an opportunity for him.

"It looks like we can only pray for a little better luck for the next upgrade." Song Zheng secretly cursed in his heart, but as his level became higher and higher, although the improvement of various attributes began to become considerable, the experience required for upgrading was also rising rapidly.

He now needs nearly half a million experience to move up to the next level, and the experience gained by killing a skeleton is only a few hundred.

"If you want to go up to the next level, you have to kill nearly a thousand undead, and according to this, wouldn't the experience required after level ten be millions?" Song Zheng frowned, but his hands did not stop, he continued to throw stones downward, and occasionally used his crossbow to shoot down those ghouls who climbed the city wall.

At this time, he was a little nostalgic for the dwarves' gunpowder, even if there was no artillery, just throwing those gunpowder packets down could cause a wide range of damage to the undead below, thus gaining a lot of experience.

"I don't know if splashing some water counts as an attack...... If it really doesn't work, just pour some boiling water and try it......" Song Zheng's heart moved.

He remembered that boiling oil was often used to injure the enemy when defending the city on Earth in ancient times, but the current Dalong County lacked supplies, and even the stones were almost thrown away, and it was impossible to provide oil.

Song Zheng quickly found the adventurers in the guild and asked them to boil some boiling water by the fires used for lighting in the city.

However, to his dismay, when the boiling water was poured down, it did not have any effect...... Those spirits are not affected by boiling water.

"Yes, these guys' skin has already rotted, and pouring some boiling water on them may be able to help disinfect them and slow down the decay of the corpses." Song Zheng was a little depressed in his heart, and could only continue to use throwing stones to smash the army of the undead below to gain experience.

Not long after, a loud bang erupted from the place where the gate was located, and then there was a commotion.

"Have the gates been broken?" Song Zheng was shocked, when he entered the city, he saw that the city gate was quite damaged, and now it was normal for it to be completely destroyed after being attacked by a group of abominations and ghouls.

"Let's go to the city gates!" Song Zheng immediately brought a group of adventurers to support.

These adventurers around him are all members of their own guild, and their strength is very good, and after being equipped with the equipment and weapons of regular troops, their combat effectiveness is even stronger than that of ordinary soldiers.

Catherine also put on a suit of armor, but it didn't fit well and looked baggy.

Originally, some people secretly laughed at her, but after seeing her wield two heavy swords with ease, no one dared to say anything, and when she witnessed her casually slashing down more than a dozen ghouls climbing the city walls, the adventurers and soldiers around her looked at her with only awe.

However, Catherine has always followed Song Zheng's side, and it seems that she is bent on being a qualified bodyguard.

Although Song Zheng was still a little suspicious and worried about her origin and purpose, he did need a bodyguard at present, not to mention that he didn't have any important secrets on his body except for the identity of the traverser, and he was not worried about being known by Catherine.

And when he led a group of men to the vicinity of the city gate, he found that the gate had indeed been breached, and a large number of ghouls and abominations were frantically trying to rush in.

However, the defenders of the city were also very aware of the importance of this gate, and the leader of the troops to defend it was Karin Redpass, the younger brother of the commander Joseph Redpass, who was a warrior close to level 8 and had a decent combat effectiveness.

"Kill that abomination first!" Karin Redpass's voice rang out on the battlefield, and he personally led a team of warriors desperately to defend against the undead.

The tall abominations were indeed the greatest threat, and if they were to rush in, the gates would surely fall.

After costing hundreds of lives, the abomination who rushed to the front was finally killed, but its massive body fell right in the way of the city gate, which made it difficult for the defenders to repair and close the city gate.

The undead and the defenders of the city kept rushing to the gate, and it soon became the fiercest place of the battle.

Song Zheng was also involved in the fierce battles here, and although he could gain a lot of experience from it, he was also heartbroken after seeing a large number of his own soldiers die in battle.

"Quickly send some mages over, and then transport some flammable things, if it is not easy to defend here, just block it with flames." Song Zheng suggested to Karin Redpass, who was already injured.

"Good!" Karin Redpass was very decisive and immediately adopted Song Zheng's advice.