Two days later, the wizards of the Fifth Ring Tower had built a permanent stronghold covering an area of ​​tens of thousands of square meters here.

With hundreds of wizards joining forces, magical buildings rose from the ground. These wizards are very skilled in using the two magical magical magical methods of fossils into mud and sils into stones, and have also blessed hardening techniques at some key points.

The residential area has also been completed, so you don’t have to live in a magic tent anymore. The reconnaissance array and some sculptural golems are placed around the garrison to guard it.

"Wizard Connor, you guys are here to guard me, I'll go in and take a look." Allen said to the crack in the space.

"Old Allen, be careful, there is a golemn army inside. The last time I encountered Obsidian golemns and Iron golemns. We don't know if there are more advanced golemns inside."

Alan nodded to show his understanding, then took out his staff and waved it gently, and the crack in the space quietly opened. Alan did not hesitate and stepped into the passage in one step.

After entering the channel, Allen directly turned on the scanning function of the chip to the maximum, and an invisible light wave spread rapidly, and then a large amount of data was fed back into Allen's mind.

"Scan to a strong negative energy response..."

"Scan to abnormal space-time fluctuations..."

"Scan to construct life..."

"Scan to the undead life..."

"Scan to large force field energy shield..."

"The degree of danger: extremely high! It is recommended that the host stay away as soon as possible!"

The cold mechanical sound of the chip kept reminding in my mind that a map appeared in front of Allen's eyes. The place with the highest energy response was in the center of the city. The entire city was shrouded in a huge energy field, and no chip inside could be scanned.

"Is this... a mystery lock?"

Seeing the large energy protection barrier covering the entire city, a noun popped up in Allen's mind.

Alan first learned that Mikasa was in the collection of the Tybis World mentor Bandal. Mikasasa was born in the Sergian Age. The early floating city did not have the ability to live in the astral world for a long time, and could only move on the main material plane.

At that time, the floating city did not load the mysterious lock, but protected the barrier. It was not until the late Seyin Age that the original mysterious lock was born.

Misuo combines many functions such as attack, defense, strategic strike, etc., which can be said to be one of the most brilliant achievements of the arcane civilization. In the following time, Misuo became the standard configuration of the floating city, and it is the first defense mechanism of the floating city.

The Arcane Council of the Tibis World does not have complete information on the Mystery Lock. The Arcane City they built did not load the Mystery Lock, but used large energy barrier technology. Even if the energy problem was solved, this floating city could not enter the Astral Realm for a long time.

The city in front of me is protected by Mi Lock, and Alan cannot use many methods. If you accidentally touch Mi Lock's defense mechanism, this thing is strategic. Who knows if a super-powered particle magic cannon will hit you directly?

"chip!"

"Scan the range of the crypt lock!"

As an invisible light wave spreads, more data comes, and the mechanical prompt sounds: "Scan is completed!"

"The current cover area of ​​the mysterious lock is about 60 square kilometers."

"Sixty square kilometers, the city is not big, but this should be the size of a floating city in the Sergian era." Allen looked at the data and kept calculating.

The population density of a city changes with productivity. The population density of cities in the medieval period was very low. Due to transportation and productivity problems, cities could not afford it and needed to transport a large amount of food from other places.

The population of cities in the wizard world is rarely more than 100,000. The main reason is food transportation, so those big cities are mostly built in areas with convenient transportation such as rivers. The population density of modern cities is exaggerated, for example, the population density in the central area of ​​the Magic City has reached 30,000 to 50,000 people per square kilometer.

All living supplies for so many people need to be transported from outside. According to the modern technological level, the population density of 3-4,000 people per square kilometer is more appropriate.

Because the floating city needs to travel in the astral realm, it must be self-sufficient and can produce all living supplies on its own, so the population density cannot be too high. From the era of the Arcane Empire of the Seyin Age, the population density of the floating city has increased to a certain extent, because of the advancement of arcane power.

The standard of the Seyin Age is 1,000-1,300/square kilometer. According to this standard, the city in front of us can meet the long-term living of 30,000 to 50,000 people. Although the area covered by the mysterious lock is 60 square kilometers, the area of ​​the city is 50 square kilometers, which is the standard of the floating city of the Seyin Age.

In the city in front of you, the mysterious locks are still running, the Golem Legion is still active, and the city's energy system is still maintained, but Alan did not scan the existence of flesh and blood life, so it is very likely that the tower spirit is still running, or life has been transformed into the undead.

After a powerful life is transformed into a dead soul, most of the memories can be preserved, and the lich can even save more than 90% of the memories, while more low-level dead souls will lose most of the memories and even have no memories from their lifetime.

Most of this ancient city should be low-level undead, and the possibility of Earth-bound spirits is the highest. Allen checked it and there is only one exit here. After the undead spirits in the city are trapped inside and die, they are very likely to be transformed into Earth-bound spirits.

Some bound spirits even repeat their activities during their lifetime, and those thousands of repetitive work have been deeply imprinted in the depths of their souls.

After wandering around the city for a long time, Allen did not get close to it. There were some buildings on the outside of the city that had turned into ruins, which seemed to belong to the outer buildings of ancient cities.

There are teams of puppet golems patrolling the edge of the city, and the whole city seems to be still operating normally.

Leaving this alien space, Allen returned to the camp. Wizard Connor, Wizard Victor, Wizard Nicholas and Wizard Ivan had been waiting here for a long time. In addition to the wizards guarding the outside, other wizards were also standing outside the door to wait.

"This ancient city is well preserved, with an area of ​​fifty square kilometers, and is protected by large clues on the outside. The clues can still operate normally. I suspect that this was built by ancient wizards according to the floating city." Allen directly expressed his guess.

"Miss Lock! Floating City!" Hearing Allen's words, Victor and Nicholas widened their eyes instantly, and grabbed Allen with excitement and said, "His Excellency Allen, are you sure? It's Floating City!"
Chapter completed!