Roger determined through his initial experiments that using his micro-world Transfiguration as an entry point to pursue life extension was a viable path.
However, Roger soon encountered the same problem as ancient wizards.
The reason ancient wizards didn't pursue micro-scale Transfiguration, or use it for operations like neutron star bursts, was because Transfiguration is a rational magic. It not only requires the caster to have a clear understanding of what the target should become but also necessitates the caster to perceive the target of their spell.
Insufficient understanding of what something should become would result in a failed, incomplete Transfiguration, like Ron turning a mouse into a cup with half a mouse tail still attached during Transfiguration class.
Insufficient perception of the target would lead to a complete casting failure, with nothing happening.
Whether you can directly see a mouse or perceive it with your hands, you at least need to know that you are changing A into B. You can't directly create B without even knowing what A looks like.
Creating something from nothing falls under the category of Summoning Charms, which are under the purview of Transfiguration.
With the help of a microscope, Roger could directly perceive the existence of cells and capture their forms. However, due to the microscope's limited precision, Roger's manipulation scale was also limited to the cellular level.
Like the ancient wizards, being limited by the scale of perception and unable to cast more refined spells was one thing.
Roger's other predicament was even more troublesome.
The path to immortality that Roger wanted to take required him to create a microscopic substance that could be controlled by his will and also repair and modify his body.
Setting aside what substance could help Roger modify his body, the mere act of linking his will to a microscopic substance was a huge challenge! After his studies at Hogwarts during this period, Roger's understanding of the magical world had reached a new level.
Before long, he came up with a plan that wasn't really a plan.
There was also another method whose feasibility was uncertain.
"Let's try both methods," he decided.
...
...
...
Harry Potter hadn't expected that after an accidental encounter with Professor Quirrell and a chat about Roger, he would find himself involved with Roger again within just two days.
"Please, help me," Roger said earnestly.
He didn't feel the slightest bit of embarrassment. If seeking someone else's help could solve a problem better, then one should go find that person.
Trouble?
Relationships between people arise from trouble. You help me, I help you, we demonstrate each other's value. Over time, the sunk cost becomes high enough, trust is established, and that's how connections are built... unless you have absolutely nothing to offer in return and are purely exploiting the other person.
When you are not yet strong enough to take on the whole world by yourself, skillfully utilizing connections between people is a very useful art.
And discerning which people are trustworthy for deep friendship and which might bring endless trouble is the difficult part of this art. However, these difficulties do not exist for Roger, the 'Seer.'
"I can," Harry Potter agreed readily to Roger's request.
After all, it was just a small matter.
With that, Harry led Roger towards the other side of Hogwarts Castle, in the direction of the Forbidden Forest.
He was going to take Roger to see Hagrid.
Roger could have gone directly himself, but introductions through acquaintances make things easier.
The task Roger wanted Hagrid to do was quite complicated. If Hagrid wasn't inherently fascinated by magical creatures, Roger would have had a hard time finding a way to get Hagrid to agree to his request.
When asking for a favor, starting with a higher initial favorability is always better.
And the outcome was as Roger expected. Hagrid was not only not displeased but was even happy to see Harry bring someone along.
He was happy that Harry had made another friend at school.
"...Magical creatures invisible to the naked eye?" the towering half-giant Hagrid struggled to lift his head from the microscope Roger had brought.
He twisted his neck, uncomfortable from being bent too much.
He seemed to understand what Roger meant – not magical creatures that were invisible through magic, but sufficiently small magical creatures.
"Yes, and I'm also a little interested in the bloodline breeding between different magical creatures," Roger nodded.
His idea was simple.
Boggarts, magical creatures that could see into your mind and transform into your worst fears. One had 'once' turned into a Dementor, nearly scaring Harry unconscious.
Among magical creatures, there were those that could sense the thoughts of other life forms.
If there was a sufficiently small creature that could sense a wizard's thoughts, yet lacked its own due to its tiny size and lack of a brain, and could also transform, it might fulfill his needs to some extent.
Roger was attempting to crossbreed such a creature.
But this was the domain of bloodline magic and magical creature studies, which Roger was not familiar with.
This deviated from the path of Transfiguration he had originally chosen, and from the perspective of future development potential, this path was inferior to his Transfiguration path. Therefore, Roger did not intend to switch tracks.
Now, Roger wanted to 'outsource' this track that he didn't plan to pursue for the time being.
If, one day, he truly failed to find the path to immortality through Transfiguration, at least he would have a fallback, unlike that old wizard who wrote "Bloodline Magic and Transfiguration - Speculations for the Future Era" and had to start anew on a new track, only to die halfway due to insufficient time.
Roger not only liked to plan ahead but also generally made multiple preparations for his actions.
And with Hagrid, even if Roger's Transfiguration path succeeded and he didn't end up using these magical creatures, he would still remember Hagrid's kindness. Moreover, the very act of cultivating a very special new magical creature, if managed well, could bring Hagrid immense profits!
"This…" After Roger truthfully shared a part of his thoughts with Hagrid, Hagrid lowered his head and pondered for a moment.
"Alright! I'll help with this!"
He was willing to help Roger with the cultivation of magical creatures in this regard.
Hagrid was a big man with a simple mind. He agreed to this not because Roger was a Seer, not because of some promises Roger made, nor because of Harry.
It was simply that the idea of creating a magical creature that no one had ever heard of, and which even had the potential to have its own classification in Magical Creatures, was… too cool for him, who loved magical creatures! This was simply the coolest thing Hagrid had heard all year! Cooler than any Philosopher's Stone!
After getting their answer, Harry and Roger ended their visit with Hagrid.
Both of them left with smiles. Roger's smile was because his objective had been smoothly achieved, while Harry was happy that he too could be someone who could help others.
And at this moment, a cold wind suddenly blew past.
The uniforms of the two were blown about by the wind.
Roger's smile vanished.
"What's wrong?" Harry, who had been paying attention to Roger, noticed that Roger's expression looked as if he had eaten a lemon.
"…Nothing, just a minor side effect from a magical experiment."
One of the two solutions Roger had devised was the path of miniature magical creatures, outsourced to Hagrid.
The other one, he was also pursuing.
However, because his own technology was not yet mature, Roger was currently experiencing some physical issues. Simply put, it was like Blackbeard after eating the Yami Yami no Mi, his pain sensation was amplified many times over.
His originally soft uniform felt like an instrument of torture to him, and when the wind blew, it was like being put on the rack.
"Magical experiment?" Although Harry knew Roger was working on things like Eternal Life, he didn't know the specific research details.
"Yes, I call it… Magical Neuron Reconstruction Technology."
"Are you interested in experiencing it?" Roger revealed a kind smile.
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