"They're smart, aren't they?"

Standing on the top floor of the tower, Zhang Cheng watched the battle at the bottom through a magic mirror without asking Allen standing at the door.

The young man hesitated obviously and quickly replied, "yes, master. If there is no accident, they should all be soldiers from the nearest city, led by an aristocratic knight. Those spell casters are the top level of the spell caster guild."

"Oh? So your friends have successfully returned to the civilized world and spread the news?" Zhang Cheng touched his chin with interest, and his eyes glittered with a chilling light.

"That's right! If nothing happens, these people should come for all kinds of powerful magic items and huge wealth," Ellens cautioned carefully.

As a servant who has lived in this tower for more than a month, he knows more than anyone how terrible the mysterious tower master is.

Besides, among the many legendary magic recorded in the library alone, there are at least thousands of kinds that can easily destroy a city or even a country and turn hundreds of thousands of square kilometers of land into ashes.

Although he was far from reaching the minimum conditions for learning these powerful magic, he understood that since the library management had records of these spells, the tower owner could not.

This means that once the stupid and greedy nobles in their hometown provoke each other, the whole city may be razed to the ground.

But interestingly, Zhang Cheng obviously didn't take this little greed to heart and smiled carelessly: "it doesn't matter! As long as they can pass the game, I don't mind giving them everything they want. But you should remember, the premise is to survive..."

The voice just fell!

Those monsters who were knocked to the ground by magic and divided by sword suddenly opened their mouths, spewed out thick black smoke, and rushed to the nearest unlucky egg at a speed visible to the naked eye.

In the blink of an eye, a large amount of black smoke poured into the soldiers one after another. In less than a minute or two, their eyes turned completely black and gave off a terrible smell of death. They turned around and jumped at others, opened their mouth and frantically tore each other's throat and face. Even if they were pierced by a sharp blade, they didn't shrink back at all.

"Damn it! What the hell is this?!" the chief Knight stared, showing undisguised panic and fear.

Perhaps he is not afraid of powerful monsters, but he is completely overwhelmed by this mysterious force far beyond his understanding.

"Hold on! It should be some kind of dead creature! Buy us some casting time!" the oldest caster shouted at his throat.

Compared with soldiers with very weak energy perception, they can most feel the extreme death energy. They understand that once the black smoke flows into the body, it is not only death, but even the soul is swallowed together and become a part of death.

Death!

The ultimate and pure death!

Obviously, when Zhang Cheng created these creatures, he added his own partial understanding of the rules, making them difficult to be really killed.

Before long, nearly half of the people in the team became poor victims and disappeared into the world forever.

Seeing this scene, Allen trembled subconsciously, and his eyes showed deep awe and fear.

Because at this moment, he realized how lucky his original team was. He had never met such a difficult opponent, otherwise he could not leave alive.

Just when the number of these elite soldiers was getting smaller and smaller and the whole army was about to be destroyed, the leading Knight finally collapsed and couldn't help shouting: "stop! Stop! Let's admit defeat!"

"Admit defeat? Sorry, there is no such option." Zhang Cheng mercilessly refused the other party's surrender.

"No!!!! I'm the messenger sent by the Lord! You can't kill me! Otherwise he won't let you go!" the knight tried to hold his life through threats and intimidation.

"Then let him come! I welcome more people to join the game!"

"No!!!!!! you madman! Devil! Ah!!!!!!!!"

With the shrill scream, the knight was finally swallowed up by the power of death and became one of the walking dead.

As for the three spellcasters, they are now completely surrounded and dare not even move. For fear of accidentally causing death, they stay where they are and pray that the owner of the tower will forgive their own lives for the sake of the same spellcasters.

Looking at the walking corpses occupied by death energy moving forward, Ellens couldn't bear it any longer and immediately said, "master, the remaining three people are members of the caster guild. I suggest you'd better not kill them, but ask them first."

Because the first old man was the mentor who led him into the magic hall in the past. Whether it is in emotion or reason, we must stand up and try to plead.

"Caster guild?" a strange expression appeared on Zhang Cheng's face.

"Yes! Caster guild! This is a neutral organization across the continent. It is usually managed by the most powerful and famous local casters. They rarely intervene in political and military affairs. They may just want to meet you, or discuss whether they can exchange some magic knowledge and materials with each other." the young man quickly explained.

"Well, I'll leave it to you. Don't let me down, or you should know how serious the consequences are."

On the contrary, Zhang Cheng waved directly and drove the youth out of the upper layer of the tower.

Ellens only felt a flower in her eyes and appeared at the bottom of the ground in the next second.

The old man found him for the first time and immediately stood up excitedly and shouted, "Ellens! Help us!"

"Of course, dear tutor." the young man calmed down his inner tension a little, and then ordered the monsters around him: "step back! Your task is over!"

"Roar!!!"

Whether it was the walking dead or those monsters, they all issued a low hoarse roar, quickly turned and disappeared at the end of the passage.

Seeing these terrible guys go away, the old man finally breathed a sigh of relief, wiped the sweat on his forehead and cheeks with his wide sleeve, smiled bitterly and sighed: "I can't imagine that I was saved by you one day. Can you tell me about this tower and what happened to you? I can feel that your magic has far exceeded me, even not inferior to the president."

"Of course, tutor. But before that, you'd better go to the kitchen with me and we'll talk while eating."