Weaving an invisibility cloak is a major undertaking.
The entire cloak needs to be woven inch by inch by hand, without relying on magical means for weaving.
On one hand, spellcasting would affect the cloak's magical stability. On the other hand, weaving is extremely delicate work. When creating something like an invisibility cloak, it requires extreme precision with not the slightest deviation. Magical weaving can hardly achieve this.
Just like in his previous life, machines could weave various fabrics, but exquisite traditional brocades could only be hand-woven with extreme difficulty.
Creating a single brocade piece often requires an extremely long time. A skilled weaver might not complete even 2 millimeters in a day. If even one thread is woven incorrectly, they might need to start over completely.
Weaving an invisibility cloak is even more complex and difficult than brocade. It requires spider silk and mithril thread to precisely weave tadpole-sized runic symbols without error. Every inch contains them. The entire cloak needs tens of thousands of runic symbols woven into it.
An ordinary weaver would need at least one day to weave a single runic symbol.
This means creating a complete invisibility cloak would require at least ten thousand days. Nearly three years.
This was the time it took Peverell to create his invisibility cloak.
But what delighted Kael was that Arwen not only had exquisite weaving skills but also extremely high efficiency. Threads constantly danced in her hands.
In less than half a day, she'd woven a perfect runic symbol, directly cutting the time in half.
Moreover, to further enhance the cloak's magical effects, Arwen wove her own long hair into it, neutralizing the spider silk's dark magical properties.
Kael felt sorry for Arwen's beautiful hair and quickly brewed a hair growth potion to restore it. Only then did he feel satisfied.
Arwen did most of the invisibility cloak weaving since Kael lacked such technical skills, so he mainly handled design and assistance.
Three months passed in a blink, and the invisibility cloak creation continued.
Arwen's weaving speed had increased considerably. She could weave at least three runic symbols per day. The task that originally would take three years could now be completed in about one year.
While Arwen wove the invisibility cloak, Kael also began preparing for the third stage of Philosopher's Stone creation.
As the predicted Saturn was about to appear, Kael rested and prepared.
This time, he didn't choose Orthanc Tower at Isengard but stayed at Weathertop's Hogwarts Castle.
Mainly because he had the stone circle remaining from when he'd previously created Hufflepuff's Cup.
The stone circle could channel Saturn's power, making it the most suitable place for the Philosopher's Stone's third-stage transformation.
When Saturn rose from the eastern horizon, Kael was already standing within the stone circle.
On the stone platform at the circle's center, the mithril furnace had reignited blood-red dragon blood flames. The double-necked flask within contained shimmering white powder emitting a faint jasmine fragrance.
For this Philosopher's Stone creation, Kael had specifically returned to Isengard and extracted over ten buckets of dragon blood from the barely recovered sub-dragons as fuel.
When Saturn reached its zenith, Kael activated the stone circle.
Simultaneously, he took out the prepared Arkenstone and directly threw this priceless treasure into the furnace flames.
Under the dragon blood flames' burning, the earth elemental power contained in the Arkenstone flowed out continuously.
Under the formation's influence, Saturn in the night sky burst with brilliant light, then projected a pillar of starlight into the stone circle.
Such commotion again drew attention from many places across Middle-earth.
Many speculated about what Kael was doing to continuously summon starlight over several months.
The giant Eye atop Barad-dûr Tower in Mordor also cast its gaze westward, filled with greed and determination.
"No rush; now isn't the time."
A ghostly voice echoed atop Barad-dûr Tower, seeming to mutter to itself or answer someone.
Kael was unaware of outside events, currently focusing all attention on the furnace.
The stone circle drew endless Saturn power, filling the entire formation like countless stardust floating, making the formation brilliantly luminous.
Kael waved his wand, channeling magical power into the furnace. He guided the formation's Saturn power and the Arkenstone's earth elements into the flask to mix with the "White Stone" and fuse under dragon blood fuel burning.
As time passed, Saturn's power and earth elements finally began merging with the "White Stone." The white powder in the bottle gradually took on golden hues. The silver gleam shifted toward gold.
Outside the stone circle, Arwen had unusually stopped weaving the invisibility cloak. She stood guard outside with worried expression.
Mainly because during the last whitening stage, Kael had faced mental trials, needing to resist inner greed.
Who knew what situations would arise during this transformation stage?
Within the stone circle, Kael also began facing the third stage's trials.
The substance in the flask began melting into golden liquid.
Though this golden liquid was merely an imperceptibly small droplet, it emanated brilliant golden light. Warm as sunlight, brilliant yet not glaring, and released a scent like sun-dried bedding.
The golden light was miraculous, directly penetrating the mithril furnace and coating the originally silver furnace with golden light, appearing very sacred.
Bathed in golden light, Kael felt warmth throughout his body.
Then he joyfully sensed his body gradually transforming. Life potential was constantly growing!
As if his body was evolving from mortal flesh toward higher levels.
But while gaining these benefits, he suddenly became somewhat restless and irritable.
His five senses became extremely sensitive. Vision, hearing, smell, taste, and touch all seemed amplified.
But this amplification didn't make him superhuman. Rather, it felt uncomfortable, annoying, and even painful.
His eyes became extremely sensitive. The whole world became heavily saturated colors, making his eyes uncomfortable. His acute hearing let him hear every sound around. His own breathing, blood flowing through vessels, his heart pounding like drums. Even the formation's magical fluctuation sounds disturbed him.
Smell and taste were even worse. Various odors filled his nostrils. Formerly pleasant floral scents became pungent.
Sensitive touch made Kael very uncomfortable. Every inch of skin clearly felt friction with clothing. Even skin exposed to air was irritated by gentle breezes.
Such sensitive bodily senses made him very uncomfortable. He constantly couldn't help dispersing his mental attention, making maintaining magical output extremely difficult.
Moreover, this sensitivity wasn't momentary or brief but became increasingly severe as the flask's substance continued transforming.
Reluctantly, Kael could only tightly close his eyes, use the Muffliato charm to seal his hearing, then block his nose to reduce interference.
Then he meditated while continuously outputting magical power, striving to keep his mind clear and focus all attention on the furnace's changes.
Time passed bit by bit. Saturn had long retreated in the western sky, but Weathertop's stone circle still maintained itself.
The brilliant stellar power gathered within the circle coated the entire castle with starlight. The tall mallorn and White Tree gleamed in the starlight's reflection, illuminating all of Weathertop.
Even Bree, nearly a hundred kilometers away, could see the radiance. Not to mention Hogsmeade at the mountain's base.
Residents, merchants, and travelers in the city all looked up at the mountaintop miracle with awe and shock. Bards excitedly racked their brains composing ornate verses for such sacred scenes.
Artists immediately set up easels and boards to capture this scene.
Days passed, and stellar power in the stone circle gradually diminished.
Only the dragon blood fuel in the furnace continued burning uninterrupted.
Kael also maintained continuous magical output, constantly guiding Saturn power and elemental forces from the Arkenstone into the flask. They were catalyzed by dragon blood to continuously react with the bottle's contents.
The white powder in the flask decreased while the golden liquid increased, releasing ever brighter golden light.
Only under the formation's constraint was this liquid's golden light contained within the formation.
Bathed in golden light, Kael's body continuously transformed with constantly growing life potential.
Vaguely, he felt his lifespan continuously extending.
But simultaneously, as golden light grew brighter, his five senses became increasingly amplified. Even magical blockage couldn't prevent deep effects.
Extremely sensitive senses changed Kael's discomfort into agony. His consciousness seemed torn into several pieces. Vision, hearing, smell, taste, and touch each brought extreme discomfort.
He wanted to stun himself with a spell or leave the formation to avoid this suffering.
But for the Philosopher's Stone's successful creation and the tremendous benefits of bodily transformation, he could only endure. Gritting his teeth while dividing part of his attention to maintain the formation's operation.
On the forty-ninth day, the white substance in the flask was nearly completely transformed into golden liquid.
The golden liquid released light more brilliant than Eärendil's Light, like a small sun appearing within the furnace. It enveloped the entire stone circle in golden radiance.
Even with the formation's constraints, small portions of golden light escaped outside, coating the entire castle in gold.
Touched by golden light, people, animals, and plants in the castle all gained invisible benefits that would bring health and longevity for life.
Besides Arwen, Smaug, and others who sensed something, the castle's servants and helpers remained unaware.
Only much later would people discover that those who'd worked in the castle lived healthy, disaster-free, long lives.
Thus more and more people regarded Weathertop as a blessed earthly realm. All dreaming of entering to gain fortune.