The once bustling streets were full of corpses lying on the ground as far as the eye could see.

Because the death of a large number of living beings in a short period of time caused the negative energy of the environment to burst, some of the dead corpses soon stood up again and became terrible undead creatures.

Among them, warriors, knights, and spellcasters who had a very high professional level during their lifetime are still evolving.

The tops of those magic towers that used to stand no longer shimmer with colorful and dazzling halos.

Either it has been influxed by countless undead, mercilessly killing all the living creatures inside, and finally the entire tower is eroded by the negative energy that symbolizes decay and death;

Either the mages in the Magic Tower voluntarily shut off all contact with the outside world, hiding in their last fortress and shivering, barely surviving with the food in the storage room.

I didn't dare to carry out all kinds of magic experiments unscrupulously like before.

As for using the portal to escape somewhere else......

Sorry, that's not possible.

Because just fourteen days ago, a critically ill archmage thought that the situation was irreparable, and with the power of the central tower, he unleashed an incomparably powerful confinement spell.

The entire city was completely locked in mid-air at a height of four thousand meters above the ground.

All teleportation magic, flying magic, and falling slowing spells do not work.

Even if a bird accidentally enters the area of influence of the spell, it will immediately fall vertically from the sky and fall to its death.

And the most terrifying thing is that this spell is valid for a hundred years!

This means that no one can escape.

Those who have not yet died will die of starvation, thirst, or old age unless they can find a way to live to a hundred years from now.

Of course, if you don't like this kind of death is not heroic and exciting, you can also choose to rush to the street to fight those undead, or jump from a height of 4,000 meters.

……

This is the Floating City of Plantia, the first floating city built by the original archmages, and it is also the center and pride of the El magical civilization.

But now, it's nothing more than a city about to be destroyed.

In fact, not only the floating city of Plantia, but also the cities and villages on the ground, similar things are happening.

This terrifying plague that came out of nowhere swept the entire continent in just over a month.

Neither the "human beings" spellcasters who lived in the Floating City, nor the warriors, knights, mercenaries, merchants, and slaves who lived on the ground and served the casters, none of them escaped the catastrophe.

No one knew what the source of the plague was, and no one knew how to treat it.

The only thing the necromancers know is that this terrible plague is constantly mutating and evolving.

All treatments can only temporarily relieve the symptoms!

And then it won't be long before it erupts again in an even more ferocious way!

Even the potions and spells that used to be claimed to be able to cure all diseases only had a slight effect at the beginning.

But soon, death swept through like a storm, killing thousands of people in a very short period of time.

Even the archmages who were like gods in the sky had many died in the plague.

Panic!

Fear!

Despair!

By now, the social order has long since completely collapsed.

The few lucky people who are still alive on the ground have taken refuge in the deep mountains and old forests.

Others even went to sea by boat, intending to take refuge on other islands and lands that were still in a state of wilderness, so as to physically isolate themselves from contact with the plague.

In short, the powerful magical civilization that the Els had built over the course of more than 2,500 years had come to an end under the ravages of the plague.

Even if the fleeing migrants survive, they may not have the courage to set foot on this land again.

It is even more impossible to regain the glory and prosperity of the past with the limited knowledge and resources at hand.

However, the mage who escaped from the Floating City probably would never have thought that the source of this civilization-destroying disaster was actually the result of a person from Earth Traveler who accidentally caught a cold and sneezed.

Yes!

It's just a little sneeze!

Unlike most of his soul-wearing peers, Zuo Si is a standard physical crossing.

Judging from the destructive power of this plague, his body must have not been disinfected and sterilized when he crossed over, carrying a large number of terrible viruses and bacteria from the earth.

And after these viruses and bacteria came to the other world, they combined with magical energy and underwent some kind of unknown mutation.

One day more than two months ago, Zuo Si spent more than forty hours sleepless in the process of making magical strange things.

Finally, it was no surprise that I fell ill because of a cold, coupled with excessive fatigue and lack of rest.

It is well known that when you have a cold, you will sneeze and have a runny nose.

Sneezing, in particular, can carry a large number of droplets carrying bacteria and viruses into the air, forming the initial spread of infection.

All creatures that are unlucky enough to come into contact with these droplets automatically become carriers of the virus, and then infect more people without even knowing it.

In addition, people from other worlds have never been exposed to mutated viruses and bacteria from the earth, let alone immunity and antibodies.

As a result, a catastrophe erupted suddenly and without warning.

Look at the dissecting table on the basement floor used to conduct necromantic magic experiments, and the corpse on the table that has just been disemboweled, bleeding and emitting a pungent stench.

Zuo Si, who was only about one meter three tall and looked like a child about ten years old, couldn't help but sigh slightly, threw away the scalpel in his hand, stepped on the stool to release the little water reserves left in the tower, cleaned the blood stains on his hands, disinfected his whole body with high-concentration alcohol, and then opened a diary and began to record it in slightly scribbled square words.

"On August 12, 2535 in the solar calendar, the weather was a little gloomy.

It has been almost a month and a half since the outbreak of the plague.

It has been a year, nine months, and fourteen days since I came to this magical world.

There aren't many living creatures left in the floating city of Plantia.

Because too many lives die quickly in a short period of time, this city, which stands tall in the sky, is transforming in the direction of the city of the dead at an unimaginable speed.

Even the proportion of negative energy in the environment is increasing exponentially.

It is foreseeable that it will not be long before this place is no longer suitable for living creatures, but will be completely reduced to a paradise for the undead.

Conclusions based on the last autopsy and observations.

This plague should not be caused by a mutated virus or bacteria, but several, dozens, dozens, or even hundreds of thousands.

That's why, the magic potion that claims to cure almost all diseases quickly becomes ineffective.

On the surface of some of the deceased's bodies, large areas of herpes similar to smallpox and chickenpox appeared, and the density of the blisters made people's scalp tingle.

There are also cases of severe failure of internal organs, and even the alveoli of the lungs are completely rotted with the collapse of the respiratory system.

The digestive system, such as the stomach and intestines, is covered with black spots that I have never seen, which are probably the result of bacterial action.

These spots rob the body of nutrients that should have been absorbed by the body, leaving the victim's body weaker and weaker, and expanding unscrupulously in the body like cancer cells.

What's even more terrifying is that those corpses that have been dead for many days can still exist as a source of infection for a long time after they get back up and become undead.

This means that the mutated bacteria and viruses will not die with the death of the host.

They have adapted to this magical world and become ten thousand times more terrifying than they were on Earth.

The tower I live in, whether it is the apprentices, warriors, knights, and slaves in the middle level, or the various monsters and beasts in the dungeon, have all died.

Only I and the female red dragon Vilmez, who had been captured from the other side of the portal and kept in the lowest level of restraint, completely cut off from the outside world, were still alive.

As for my mentor and collaborator, the master of this tower, and the chief archmage of the Necromantic faction of the Magic Council, Asta, was long before the outbreak of the plague.

I guess he should have taken the note he snatched from an old mage in the continent of Faeron and hid in an unknown place to try to transform his old body into an immortal powerful spellcaster, the Lich, through a cruel and terrifying magical ritual.

Of course, none of this matters anymore.

Anyway, the floating city has been completely locked by magic, and the people inside can't get out, and the people outside can't get in.

Other than that, there was nothing left to eat inside the tower.

The storehouse where the food was stored was contaminated with negative energy and the corpses of dead slaves.

Thankfully, I already had a plan to escape.

Finally, I want to emphasize that I really didn't mean to do this about this plague.

It was just a terrible accident......"