At four o'clock the next morning, Felix opened his eyes in a daze, his head buzzing as if a crucible ladle had been plunged into his brain and stirring it constantly.
He rose from the bed and made his way to the washroom with a briskness in his step.
His face in the mirror appeared flushed, as if he had just fished himself out of boiling hot water, and he muttered, "The side effects of the Thinking Room sure come fast."
Last night, in order to have time to deduce the defective rune on the rune ball, he forcibly increased the operating speed of the Thinking Room, and now the side effects showed up at his door.
He had expected this.
He came out of the washroom, glanced out the window at the thick darkness, and gave himself a large cup of potion, and soon the fever went down, but his whole body remained breathless.
Felix lay in bed until ten o'clock, the constant tingling in his brain left him with no appetite at all, and he couldn't even think quietly. He decided to go out for a walk, at least to get a cool breeze.
Before he knew it, he reached the edge of the Forbidden Forest, and Felix squinted his eyes as he made a choice between the Forbidden Forest and Hagrid's Hut.
"Since we're here, how about ... testing the zooming spell?" He is simply too curious.
Felix only hesitated for two seconds, then slowly walked into the forbidden forest, but he put a trench coat over himself, and lightly tapped his fingers on his chest, and the trench coat pulsed with a crystalline light of magic.
This trench coat was made of basilisk's skin on the inside and fire dragon skin on the outside, which was carefully tanned by Felix, adding many rune circuits and defensive enchantments to make the final product light and fluffy.
The air in the forbidden forest is warm and humid, and he got a little better in spirit as his eyes kept bouncing around.
'A Tebo warthog... a red hat will do.'' Felix's mind wandered in anticipation.
He walked along a steep stone path, all the way down, and he suddenly remembered that he had picked up a large claw of an Acromantula here in the last school year.
He had wanted to use the large claw to make a rune carving knife, but it had dried up, and he failed to capture even a trace of magic. Plus, he was so busy that he left the matter behind.
A rustling sound rang out, and Felix looked up to find himself surrounded by a dozen large spiders of enormous size, and it looked like they were ready to attack.
Acromantula ...
"It's so sweet, it's great that you guys came up to me," Felix said sincerely.
The large spiders across the way kept fiddling with their big claws, making a "click-clack-clack" sound, and he could even hear the hard black fur covering their bodies scraping against the ground.
Felix's ebony wand is casually held in his hand, there is no sign of any powerful spell fired, but a pale blue glow has quietly emerged from his left hand, and he kept injecting magic, which twisted into a spherical vortex in the blink of an eye.
The vortex's edges were faintly visible in the form of magic runes - the spherical vortex is the magical embodiment of a skeletal runic sphere.
A big, elephant-sized Acromantula had jumped into midair.
Felix flatly extended his hand.
The spherical vortex spun violently above his palm, and internally the blue magic swelled up by leaps and bounds, wrapping Felix in it and forming a spherical barrier twenty feet in diameter.
The magic spun around him at high speed, weaving a beautiful web of magic.
The spherical vortex in Felix's hand had turned colourless and transparent, and a terrible suction force gushed out from within it, and the Acromantula in midair got shredded without any resistance.
When it touched the outermost circle of blue light, its speed slowed down and its body continued to shrink, a process that probably lasted less than a second, and then it looked like a small stone thrown into a pool of water, completely disappearing.
Felix came closer to examine carefully, in the colourless transparent vortex, a small spider the size of a green bean scratching its tiny claws and constantly spinning.
The powerful suction in the vortex did not have any effect on Felix, but it is real, and it keeps extending outward.
"Ka-chow!"
A large tree broke in the middle, came whirling towards him, and when it approached the blue magic web three meters around him, it quickly shrank into a toothpick, and together with an Acromantulas lying on it, they plunged into the spherical vortex.
Not only trees and Acromantulas, but also human head-sized rocks also whistled and were pulled over, dirt, dead branches ... with him as the center, all kinds of strange and bizarre things flew towards him in one stream.
Felix thought about it and began to consciously control the magic, the wind swirling around disappeared, the swaying branches slowly quieted down, but the suction brought by the vortex all converged towards the remaining Acromantulas.
They tumble and fly backward in various positions, and are thrown into the vortex in a single stream.
Of the total twelve Acromantulas, not even one escaped.
Felix examined the miniature world in his hand with interest.
He tried to make the rapid rotation of the vortex stop, which fell silent very smoothly, the outer layer of magic power returned to the spherical vortex, softly rotating.
He is now holding a transparent sphere, the interior is like a silky ribbon of blue magic, they stretch freely while floating around lightly.
The prisoners within the spherical vortex - Twelve Acromantulas tumbled helplessly, one of them barely grasping the toothpick-sized old tree, its tiny claws squirming wildly.
Felix summarized the information he had gained so far -
Firstly, although only the shrinking effect of this magic had been tested, the enlarging effect had not been tested yet, but it could be confirmed that it is undoubtedly a zooming spell, not something random, which made him breathe a sigh of relief, the biggest stone in his heart fell down.
Secondly, the effect of the magic is exaggerated; and
''The spherical vortex provides a powerful suction, and the magic coiled inside expands into a web that shrinks everything.''
''The acromantula isn't weak, but it's powerless against it, which means most of the forbidden forest creatures can't fight against this magic.''
Felix stared at the bare empty patch within a ten-foot radius, even the ground shortened up to reveal the wet brown mud. This is still the result of him reacting midway and shifting his target to the acromantula.
"The effect on magical creatures should be very good, and in the future, there is no need to worry about being besieged. As for the wizard ..." he analysed in his mind, his head tingled again, "Hiss~"
Felix paused as he looked around the scene for a while, deciding to wait until he got rid of the side effects of the thinking room before analysing it in depth.
"Next, the most important part-"
He snapped his fingers and Acromantulas inside tossed out of the vortex, its body rapidly expanding under his control, and after a dozen or so seconds, it had returned to its initial size.
The big spider looked up at the horrible wizard who is sizing himself up and muttering something strange under his breath, "Didn't find anything wrong, no deformities, no abscesses, it really works."
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Acromantula's eyes trembled in unison, and the two large claws seemed to have activated some kind of switch so that they were linked together with a "da da da da da da " sound.
"Well ... test the enlarging effect now."
Felix first cast a Stunning Spell to knock it out, then used his wand to fling a ribbon of blue magic over the ugly head of the acromantula, under his control, the giant spider quickly expanded in size, ten feet, twenty feet, thirty feet.
Felix paused and walked around it.
''Enlargement is also possible, this magic is fully under my control.''
''But it always feels like it's not very useful.''
Felix observed the display, who would make their enemy bigger on the battlefield?
To turn your opponent into a bright target?
There are clearly lots of better ways.
Felix restored the giant spider to its original shape, and after some examination, shrunk it to the size of his pinky fingertip, he took out an ordinary clear glass vial from his ring and put it inside.
"Mr. Acromantula, you stay with me for a while."
Next, he waved his hand and dispersed the spherical vortex, and a dozen seconds later, eleven big spiders that had passed out were lying around him.
It looked like they would have been rendered unconscious by the spin.
He carefully left magic marks on three of the giant spiders, with these marks he could directly find their nests.
Acromantulas were too close to the school, and judging from the way they attacked humans without a care in the world, the danger level seemed high, so it would be best to move them farther away.
It would be nice to keep them as companions to the trolls, just at the other end of the forbidden forest.
But not today, he had a better idea just now.
...
An hour later, Felix knocked on the door of Hagrid's hut with a small black dog with three heads in his hands.
Hagrid seemed to have just eaten, with ketchup on his beard, humming in a low voice.
He opened the door with a hearty laugh, "Felix, your advice is useful, the students are responding well ... and such!" He abruptly shouted, from his eyebrows to a beard fluttered.
"Fl ... Luffy ...," Hagrid's eyes brimmed with tears.
Felix smiled at him, "That's right, I took Fluf-"
"... surprisingly had a baby!"
"Hmm?" Felix looked at Hagrid with a head full of question marks, and his head began to tingle again.
The next second, he got pulled in by Hagrid's big hand, "Come on in, don't let the little one catch a cold."
Hagrid pushed him on a chair, the lanky figure turned around in a circle in the hut, muttering incessantly, "Let's see ... let's see ... what three-headed dogs need when they are young. First, the fireplace, and raw meat, it just so happens that Fang still has some left ... how can be music missing! His father loves me playing the flute for him, oh my God, Fluffy had a child, I was completely in the dark!"
Felix froze for a full ten seconds before he figured out what was going on, and he interrupted the busy Hagrid with a tearful laugh: "Cough... Hagrid, remember that magic of mine? In the summer holidays, I made a yew tree into a potted plant?"
Hagrid slowly paused and said in an uncertain tone, "Of course, I remember, don't tell me ..." His eyes went to the little black dog in Felix's hands on the other side - which frantically wagged its tail and looked at him pitifully.
He felt a strong sense of familiarity.
"That's right, I just brought fluffy to you, and I'm a man of my word."
Hagrid let out a meaningless muttering, then scooped up the three-headed dog from Felix's hands and brought it close to him for a closer look.
The little guy is only half a foot tall, not even half of Hagrid's palm. Body like black satin, its three heads are only as big as a walnut, is complaining with " whimpering " sound.
Hagrid's hand trembled, "really fluffy, look at the paws, the nose, his second head is a little smaller, smaller as he was born, and I thought he was deformed ..."
The three-headed dog fluffy returned to the hands of his 'old father', his four meaty paws, trying to paw Hagrid to death.
Fluffy's three heads greedily breathing Hagrid's body smell, after a while, it suddenly turned its head towards Felix and " woof " barked.
This is the bad guy! Suddenly appeared and turned himself into a puny little thing!
"HoHooHo!" Hagrid laughed even more, "That's how he barked when he was little, he learned it from fang, but when he was twice fang's size, he never barked again."
"As long as you're happy, Hagrid, I don't know if I did the right thing, didn't think too ... much about it," Felix said.
"You're too kind, that's exactly what I wanted!"
Seeming to see that Hagrid isn't going to stand up for himself, Fluffy completely became honest, and he plopped down on Hagrid's shoulder - which is exceptionally spacious for him right now - and within a few moments, his three heads started fighting over the raw meat Hagrid handed over.
"Slow down, slow down, it's all yours," Hagrid said with a smirk.
Before leaving, Felix remembered to remind him unusually: "Hagrid, if Fluffy grows to one-third of his normal size, send him back, because then he will recover very quickly. I deliberately strengthened the spell, I think you can probably spend a week with him."
"Got it, got it," Hagrid said contentedly.
From Hagrid's hut, walking back to the castle, Felix suddenly remembered that he still had an acromantula hidden in his pocket.
He could not help but hesitate, he did not want to go back again.
Maybe he should have left it ... alone, but no one saw it anyway ...
But in the end, Felix took it back to the office.
Lying on the couch, he lazily finished watching a film and ended up seeing everything but without remembering anything at the end.
"The thinking room's side effects are too much."
Felix poured himself another potion and for a moment he felt better, his brain isn't so tingly. He fished out the Ravenclaw diadem directly from his ring and put it on his head.
A trace of coolness is constantly released, soothing his weary spirit.
''Surprisingly, it really works!''
Felix felt like his 'sanity' had left home and finally returned after wandering around outside.
He sat up from the sofa and carefully recalled the events of the day, and couldn't help but cover his face.
"Too reckless..."
He quickly went to the workbench and applied a layer of a protective ward on the glass vial containing the acromantula.
"Good, now even a three-headed dog will take some time to break it open." He said with satisfaction, "It's just the right time to record the duration of magic maintenance, and then compare it with the data from Hagrid's side ..."
But then, he suddenly realized a serious problem, "If I'm not better tomorrow, how am I supposed to give lessons to the young wizard?"
Felix stared at himself in the mirror, wearing a diadem on his head that resembled a winged eagle, a sky sapphire set in the eagle's chest, its wings adorned with rows of pearls.
Going to class with a Ravenclaw diadem would not only result in ridicule, but also in trouble.
After a while, Felix came up with an idea, but he had some resistance to it ...
When Hermione knocked on the office door on time, she saw Felix with a wide dark brown bowler hat on his head.
"Is that Professor's new look?" She couldn't help but take a few more glances.