According to the "Treasure Map of Kael'thas" the treasure is located deep in the Endless Sea.
The straight-line distance is approximately more than 800,000 kilometers.
Due to the lack of precise spatial coordinates, Rennes is unable to open the teleportation gate directly to the treasure location.
There is no other way, he can only travel through space.
One day later, Rennes successfully arrived at the boundary of the Endless Sea.
An endless ocean appeared before Rennes, with no visible boundaries.
"Whoosh! Whoosh!"
The sea water surged, forming countless waves crashing onto the beach.
Fish swam and seagulls flew.
There was no trace of human presence.
It seemed extremely harmonious and peaceful.
However, Rennes knew that this ocean was far from being as simple as it appeared on the surface.
According to the information he had collected before, the Endless Sea is extremely vast and boundless.
Inside, there are countless powerful sea creatures and marine races.
In addition, the weather is also unpredictable.
One second it could be sunny, and the next second it could be a terrifying storm that could bury legendary powerhouses.
For ordinary transcendent beings, this ocean can be considered a forbidden land.
Once you venture deep into it, there is a high probability of death.
Either being attacked and eaten by sea creatures, or being caught in natural disasters and dying without a trace.
That's why, even though the Endless Sea is rich in resources, not many people dare to go there to collect them.
However, for Rennes, who is almost invincible in the world, the Endless Sea, which is considered extremely dangerous in the eyes of ordinary transcendent beings, is nothing at all in his eyes.
Without any hesitation, Rennes looked at the map in his hand and headed towards the direction of the Kael'thas treasure.
Continuing on the journey, all that could be seen was water.
No land could be seen at all.
As Rennes went deeper, various strange and bizarre sea creatures appeared one after another.
However, it seemed that they can feel the aura of pressure emanating from Rennes, these sea creatures didn't attack Rennes without reason.
Just like that, Rennes smoothly flew to the depths of the endless sea.
He didn't know if it's because the sea is too deep or something else, the water in the depths of the endless sea appeared black under the sunlight.
Just looking at it, it would make people feel uneasy.
And it seemed like the sea wanted to give Rennes, an outsider, a warning.
Not long after entering the depths of the endless sea.
The sky above this ocean suddenly changed, countless dark clouds gathered.
Making the originally clear sky extremely dark and gloomy.
In the next second, the strong wind howled, sweeping across the ocean!
Woo! Woo! Woo!
In just a few seconds, these strong winds formed a powerful storm surge, covering thousands of miles of surrounding ocean.
Billions of tons of seawater were sucked into the storm, forming huge waterspouts that reached from the sky to the ground.
An extremely spectacular view.
The destructive power of this storm disaster is comparable to the strongest Ninth level Magic.
Not to mention legendary powerhouses, even some half god powerhouses involved in it would end up severely injured and dying.
But for Rennes, this level of natural disaster is nothing more than a gentle breeze.
Not worth mentioning at all.
An invisible spatial barrier enveloped Rennes' body.
No matter how the storm raged, it couldn't reach Rennes within the barrier.
Even Rennes' clothes couldn't get wet.
Ignoring this incredibly strong storm disaster, Rennes held the treasure map and continued on the road, continuously discerning and correcting the direction of progress.
After half a day, Rennes successfully arrived at the deepest part of the endless sea.
And the eastern sea area calmed down.
According to the map, the location of Kael'thas' treasure should be within this sea area.
However, the surroundings is just water. There are no islands or other things to use as reference.
And Rennes also cannot confirm where the treasure is in this sea area.
There's no other way, only the clumsy method can be used, searching this sea area thoroughly.
In the next five days, Rennes almost covered every inch of this sea area, both underwater and in the sky.
Finally, a discovery was made in an underwater cave.
There is a dimensional portal connecting to a different plane in the spatial plane of this underwater cave.
However, this dimensional portal seemed to be concealed and sealed by a highly advanced spatial magic.
If it weren't for Rennes' mythical-level talent in spatial manipulation, it would be impossible to perceive the spatial anomaly in this area.
"This dimensional portal most likely leads to the location of the Kael'thas' treasure."
With a judgment in mind, Rennes immediately took action.
Activating his ability of spatial manipulation.
Forcefully opening the dimensional portal that was concealed by powerful magic.
"Crack!"
Accompanied by a sound of shattering.
A blue vortex-shaped spatial gate appeared in front of Rennes.
Without hesitation, Rennes walked straight into it.
Passing through the spatial gate, Rennes arrived in a different plane.
At the first glance after entering, Rennes was firmly attracted by the magnificent and peculiar building in front.
It was an extremely huge island-like structure, its area was comparable to a medium-sized city.
There were also dozens of large mage towers of varying heights standing on it.
The huge island body was clearly made of rare magical metal, and countless high-level magic rune arrays were engraved on it.
These magic rune arrays were interconnected like gears fitting together.
It looked full of the beauty of order.
And under some kind of ingenious magical technique, tens of thousands of top-level magic arrays were combined into a whole.
One can imagine, once these magic arrays are activated, they will unleash astonishing power.
Even the gods would probably have to avoid their sharpness for a while.
"This is a floating city!"
Coming back to his senses, Rennes' eyes were filled with astonishment and excitement.
As the most powerful war weapon used by arcane practitioners to fight against gods and traverse the universe.
Each floating city is an extremely terrifying interstellar fortress, its value is comparable to a medium-grade divine artifact.
Not to mention, the owner of this floating city is most likely the great arch mage Kael'thas.
This individual possessed such immense power that he rivaled powerful gods and deities.
The floating city he possessed is definitely not something that an ordinary floating city can compare to.
If it is intact, its value is equivalent to that of a super artifact.
(Note: Artifact levels range from low-level, medium-level, high-level, super, to supreme...)
However, unfortunately, this floating city in front of him is clearly in a damaged state.
Otherwise, it should be floating in the sky.
Instead of lying on the ground.
At the same time, many magic arrays engraved on the floating city are in a closed state.
A preliminary judgment suggests that the power supply system of the floating city has malfunctioned.
"I hope the damage to this floating city is not too severe."
Rennes silently prayed in his heart.
The floating city is a supreme magical creation that gathers the wisdom and efforts of countless top arch mages and arcanists.
If it is too severely damaged, with his current magical attainments, it is obviously too difficult for him to repair this behemoth in front of him.
Taking a deep breath, with an expectant mood, Rennes walked towards the floating city.
He was prepared to explore it completely, to find the treasure left behind by the great arch mage Kael'thas, and to see if he could repair and restart this damaged floating city.