Harry followed Mister Fantastic through the winding corridors of the Illuminati base until they arrived in an empty open area, where he saw the precision instrument placed at the very center.
The magic stabilization instrument was covered in a cold-white metallic sheen. Its base was a hexagonal platform half a meter in diameter, with a diamond-shaped transparent crystal embedded in each of its six corners. Faint purple light flowed inside the crystals like solidified magical mist.
The main body consisted of three metal pillars wrapped in spiral patterns. Their surfaces were covered in dense silver runes, and when the instrument activated, those runes would light up and connect into endlessly flowing bands of light.
The tops of the three metal pillars converged into a floating ring-shaped device. Inside the ring hovered a crystal sphere the size of a fist, and at the center of the sphere was a rotating golden point of light, the stabilization anchor of the magical core.
Harry asked Mister Fantastic how he was supposed to use the instrument.
Mister Fantastic smiled and explained, "It isn't too complicated. I observed the functional core of your floating city and the magic stabilization instrument installed on it.
"Although it isn't as precise as this instrument, its advantage is that it's stable and can be used repeatedly.
"You only need to connect this instrument's interface to the machinery of your floating city. Then, when you activate the floating city's stabilization device, the two systems will link together and jointly stabilize your magic power.
"But right now, we're still in the testing phase. First, activate it at a tiny output, just one percent. I'll test whether it can function properly. If it can, we'll immediately launch an attack on Six-Stone Ultron."
Harry followed Mister Fantastic's instructions and activated the instrument with a tiny amount of magic power. The instant he did, he felt the amount of magic power he could control increase several times over.
At the same time, a nearly imperceptible crack appeared on the crystal pillar at the center of the instrument.
Seeing this, Mister Fantastic said excitedly, "Good, good, good. We've completely succeeded. Activate all forces immediately. We're attacking the Kree Empire in your universe right now."
At the very center of the Kree Empire, an Ultron Titan production facility dozens of kilometers tall had been completed within a few months. Since its completion, it had operated day and night without pause, consuming all the resources of the Kree Empire to help Six-Stone Ultron create more Ultron Titans.
Beside that Ultron Titan production facility, a three-meter-tall robot made of vibranium stared fixedly at the scene before it.
It was not Six-Stone Ultron's true body, but one of his avatars. Yet even as an avatar, it possessed strength surpassing the main bodies of Ultrons from other universes across the multiverse.
Suddenly, it looked toward the deep reaches of space. Intelligent light flickered in its eyes, and a voice as heavy as grinding metal sounded from its body.
"So you've come? The final battle is near. Let me see exactly what this so-called Harry Potter is capable of."
The moment Ultron's avatar finished speaking, mechanical roars echoed across all of Hala.
The fleet the Kree homeworld once possessed had vanished at some point. In its place, dozens, then hundreds, of thousand-meter-tall Ultron Titans rose from the surface of the planet or flew out from deep underground, heading into outer space to collide with the incoming Asgardian fleet.
Every combat force Ultron had in this universe had now been deployed.
A portal opened aboard an Asgardian starship, and several core members of the Illuminati walked out.
Thor came over and asked with expectation on his face, "Is it done?"
Harry nodded, patted Thor's solid shoulder, and said calmly, "Don't worry, Thor. Everything is ready. All the pieces are in place."
Thor nodded. His whole body gradually relaxed as well. Harry had always been reliable, and Thor believed his words.
After that, Thor reached into the air, and a projection of the cosmic route appeared before everyone.
"In another half hour, we'll make frontal contact with the Ultron Titans. With our current starship configuration, there's no way we can match them, so we'll need to take action ourselves."
As one of the top artificial intelligences in the multiverse, Ultron possessed the ability to self-purify.
His current technological level was also among the very best of all civilizations in the entire multiverse.
Therefore, these Asgardian starships alone could never be his match.
But the multiverse was not some magicless environment. A single individual could also unleash earth-shaking strength.
The role played by a Skyfather-level powerhouse on a battlefield far exceeded that of dozens of top-tier starships. So now, if Asgard's current combat power collided head-on with the Ultron Titans, who would win and who would lose was still uncertain.
Sif, one of Asgard's Four Warriors, came to Thor's side and reported to him.
"All starships have transferred their energy to their shields. From here on, fight as much as you need to. We can protect ourselves."
Mister Fantastic suddenly took a sphere from his pocket and handed it to Sif.
"This is an area teleportation device I invented. If you're caught in the aftershock of our battle, crush this instrument in time, and it will teleport you to the Illuminati universe."
Sif's eyes lit up, and she thanked him. "Thank you, Mister Fantastic."
To the vast, boundless depths of space, half an hour was only an instant.
Through the transparent glass of the command room, Harry saw dozens upon hundreds of thousand-meter-tall Ultron Titans ahead.
He took his wand out from his pocket dimension, lightly tapped the empty space before him, and opened a portal several meters in diameter.
"Let's go, my friends. What lies before us is only the first battle of the final war. We will win it easily, then use their connection to Ultron to invade the Ultron universe where Six-Stone Ultron's true body is located."
The moment he stepped through the portal, Harry's wand had already carved a green arc of light through the air.
A hundred Ultron Titans blotted out the sky, their metallic shells reflecting an eerie crimson light.
The Ultron Titans were extremely powerful, but as Harry waved his wand, green flames suddenly burst from the joints of half the mechs.
The Disintegration Spell transformed into an energy torrent that swept across the sky. Thirty mechs split apart in an instant like tin foil corroded by high-energy acid, and their remains crashed into deep space with shrill screams.
Doctor Strange's Cloak of Levitation carried him rapidly forward. The instant he drew circles with both hands, seven ring-shaped portals exploded open among the Ultron Titans.
The particle beams fired by the twelve Ultron Titans in the front row instantly poured back through portals behind them. Twelve particle beams struck the cores of twelve Ultron Titans with perfect accuracy, and their energy cores disintegrated in self-destructive white light.
After destroying twelve Ultron Titans, he did not stop attacking. Instead, he shouted, "Dimensional Folding!"
Runes flowed around his fingertips, and he stuffed five mechs attempting to flank them into a constantly shrinking orange-red alternate space. The groan of twisting metal had only just sounded before it was swallowed by spatial cracks.
Doctor Strange had also destroyed nearly twenty Ultron Titans in just a few minutes.
"Try this!"
A blue mech several meters tall suddenly leaped out of a portal. The armored suit driven by Mister Fantastic stretched both arms like liquid rubber and directly pierced through the cores of two Ultron Titans.
The core energy devices let out deep rumbles. The outer shells of the Ultron Titans were torn apart like aluminum foil, and immediately afterward, their core energy devices were completely destroyed.
After dealing with two Ultron Titans, Mister Fantastic activated the energy inside his mech again. A high-energy pulse radiated rapidly outward from his palm as the center, striking seven nearby Ultron Titans in the blink of an eye.
After unleashing such a massive burst of energy in a short time, Mister Fantastic no longer had the strength to continue fighting. But at that moment, Iron Man rushed in and helped him block the next wave of attacks.
Iron Man's red armor swept across the sky, dragging ion flames behind it. The missile pods on his shoulders opened like blooming metal flowers, and forty-eight micro-missiles trailed white smoke as they wove into a net.
"FRIDAY, saturation strike mode."
The forty-eight micro-missiles and the repulsors on his armor fired together, launching fifty high-energy beams. The power of each beam was not enough to destroy an Ultron Titan, but when ten high-energy beams merged into one, they could tear apart an Ultron Titan's energy core.
Therefore, after helping Mister Fantastic block Ultron's attack, Iron Man simultaneously destroyed five Ultron Titans.
At this point, most of the nearly hundred Ultron Titans had been destroyed, and the remaining smaller portion tried to retreat.
But Harry entered an overloaded state, and after a brief charge, completed an ancient spell.
The colorful magical energy once used by the young Voldemort against Harry appeared again, shining like a star in the deep space of the multiverse.
The multicolored light swept past only once, and the remaining small group of Ultron Titans vanished completely from the universe, as if they had never appeared at all.
At that point, the hundred Ultron Titans that Ultron had created by overdrawing every resource of the Kree Empire had all fallen.
Thor, who had not even had time to act before the battle was completely over, looked somewhat lost.
At that moment, a portal opened beside him, and Harry's voice came through it.
"Thor, go to Hala and completely destroy the Kree Empire's Supreme Intelligence.
"We need to invade the Ultron universe through the connection between these Ultrons and Six-Stone Ultron's true body as soon as possible. I'll leave the rest of this universe to you."
Thor only had time to nod instinctively before he saw the four figures in deep space vanish.
When Harry and the other three stepped out of the portal again, they discovered that they were immediately surrounded by countless megastructures.
They were several planet-sized megastructures that functioned as fortresses.
Every planet-sized megastructure was equipped with weapons powerful enough to destroy a star system. This was Ultron's true foundation. Every single planet-sized structure possessed the ability to conquer a weaker universe.
Suddenly, a voice rang out across deep space through some special method.
"I truly did not expect you to actually chase me into my universe. However, when you gaze into the abyss, the abyss gazes back at you. You want to destroy me completely, but how is this anything other than walking straight into the lion's den?"
Even as the voice sounded, the planet-sized megastructures did not stop charging.
The moment the voice fell, several planet-sized megastructures fired high-energy particle beams dozens of kilometers wide.
Those high-energy particle beams seemed to use some kind of compression technology. When they had just been fired, they were dozens of kilometers in diameter, but by the time they reached Harry and the others, they had narrowed to only a few dozen centimeters.
Although the diameter of the high-energy particle beams had shrunk hundreds of thousands of times, their attack power had not decreased. Instead, it had increased hundreds of thousands of times along that path of only a few dozen centimeters.
At this point, even the most advanced technological battle armor created by Mister Fantastic could not block a direct attack from those high-energy particle beams.
Doctor Strange's expression changed slightly. He immediately tried to carve through the void and open several portals to teleport those high-energy particle beams away.
But the moment he acted, his expression changed completely.
The surrounding space had been fully sealed by some kind of instrument, and it even contained the energy of the Infinity Stones, which he was familiar with.
He could not tear open the void at all, nor could he open any portals.
At that urgent moment, Harry suddenly shouted, "Protego Maxima!"
A transparent shield appeared in front of the group, helping them block the high-energy disintegration beams.
This was not magic from this world. It belonged to the idealistic magic within chaos magic.
The stronger the emotion and the stronger the magic power, the stronger its effect.
At this moment, Harry was in an overloaded state, and the Protego Maxima he used had completely materialized, like a layer of glazed glass blocking the path in front of them.
On top of that layer of glass, fluorescent-green disintegration light flickered constantly, breaking down the high-energy particle beams that struck it and helping Protego Maxima relieve the pressure.
With the two working together, the high-energy particle beams that could easily destroy an entire solar system were still blocked by Harry.
Even so, Harry paid a tremendous price for blocking that wave of attacks.
First, the magic power inside his body churned continuously and could break free from his restraints at any moment, destroying everything around him without distinguishing friend from foe.
If that were all, it would still be fine. He could completely destroy this universe.
But while out of control, he would not be able to use the magic stabilization instrument to stabilize his own magic power, nor would he be able to precisely destroy all of Ultron's collective bodies throughout the multiverse. That meant he would not be able to truly kill Ultron, and their final plan would fail.
Right now, he needed to buy a little time and wait for the final piece to arrive.
Seeing Harry block his attack, Ultron said in some surprise, "Your strength has probably already surpassed the Ancient One of many universes. But even so, what of it? You will still be killed by me.
"Harry Potter, the only path left for you now is to use that secret technique that amplifies your strength and raise yourself to the multiversal level.
"But when that happens, will the Illuminati members beside you still survive? And can you truly kill me?
"Hahaha, fate has already been decided. In the end, this battle will still end with my victory!"
Just when Ultron thought he had already won, Harry suddenly laughed. His smile was brilliant.
"What are you rambling about? I'm waiting for my cooldown. What are you waiting for?"
The moment Harry finished speaking, a deafening roar sounded from the depths of space.
The space several kilometers behind Harry suddenly trembled violently. Then, like a mirror, it cracked open, and an island dozens of kilometers across, like a city, emerged from the void.
Immediately afterward, an unseen connection linked Harry to the floating city, and the chaotic magic power inside his body instantly stabilized.
For the next minute, he could use his magic power without restraint.
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