After some research and testing, Newt Scamander, one of today's most experienced magical zoologists, soon found a way to further weaken the basilisk's murderous gaze without affecting its vision too much.
To do this, the wing membranes of a thestral were used as the main material, turning them into a transparent patch that would be placed over the basilisk's eyes, theoretically weakening its gaze.
Many magical creatures have good resistance to magic, but most of them are impervious to light, and with the green casing removed, the thestral's wing is just a thin, almost translucent layer, making it easy to create a "blindfold" that does not interfere with vision.
In addition, the thestral itself is also very resistant to magic, as Newt once used one to ward off a spell cast by Gellert Greenwald, the first Dark Lord, when he was young.
So, all things considered, the thestral wing was the most suitable material.
As soon as the material was chosen, Newt had several copies of the thestral wings sent to him through his own contacts.
Then, with the help of Dumbledore, Professor McGonagall and Snape, who had come to Fish's birthday party and had not yet left, a pair of huge pale blue translucent eye patches were quickly created...or, more appropriately, contact lenses.
"Fish, put them over the basilisk's eyes."
Dumbledore handed the finished contact lenses to Fish.
"Okay nya!"
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Fish took over the special basilisk contact lenses and immediately greeted the coiled basilisk, which had returned to its original size, enthusiastically, "Uroboros, come down quickly nya."
The basilisk obeyed and stretched its head in front of Fish, then allowed him to place the two soft pale blue contact lenses over each of its eyes.
"Nyajajajaja, Uroboros' eyes are as green as Fish nya's!"
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Fish laughed gleefully as he looked at the basilisk's eyes, which had turned green under the influence of his contact lenses.
Dumbledore stepped forward and cast a binding spell over the two contact lenses covering them to prevent them from falling out.
"Not bad, the power of the basilisk's eyes did weaken."
Dumbledore nodded in satisfaction as he felt the power of the basilisk's gaze with the contact lenses on, though the weakening effect was slightly less than Fish's animal shrinking spell, but the snake still hadn't basilisked.
So he turned to Fish and said, "Now it's your turn to shrink the basilisk, see if it still affects other people or animals, and if it no longer petrifies people, I'll let you take it out of the Chamber of Secrets."
"Excellent nya!"
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Fish first cheered and then asked the basilisk, "Uroboros, are you uncomfortable?"
"Hiss."
The basilisk shook its head, indicating that it didn't feel much.
After all, snakes have a transparent membrane outside their eyes, and they don't have eyelids and can't turn their eyeballs, so the extra layer of membrane over them doesn't affect them too much.
After receiving Uroboros' response, Fish walked up to him and cast [Animal Shrink], and in a few moments, the basilisk turned back into a small, half-meter long snake, which coiled itself quietly around Fish's arm.
"That's it."
At the sound of Dumbledore's voice, Newt, who had been impatient for a long time, opened his eyes and, with a quickness unbecoming of an old man, leapt to Fish's side and placed the toad he had prepared in front of the basilisk.
"Not petrified!"
The toad in his hand was looked at by the basilisk, and though it was too frightened to move, it still held the vitality it should have.
Newt Scamander immediately yelped in surprise.
Dumbledore also nodded with satisfaction, while feeling somewhat annoyed.
If he had known he could solve the basilisk problem this way, he wouldn't have had to offer to renovate the girls' bathroom and the abandoned rooms, but now that word had gotten out and the Council had been informed, the money would have to be spent.
"Does that mean Fish will be able to take out Uroboros in the future nya?"
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Fish wondered why Dumbledore was suddenly looking at him with a strange expression on his face, he looked at Professor McGonagall next to Dumbledore and asked impatiently.
"Don't worry, Fish," Dumbledore wiped the look of remorse off his face, then waved his hand at Fish and said, "We have a few more things we need to confirm."
"What's the problem? Obviously, Uroboros can't hurt anyone else!"
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"What's the problem? even Uroboros can't hurt others nya!"
Dumbledore was unfazed, after all, creatures like basilisks are too dangerous and one cannot be too careful.
"First of all, can the basilisk break free of your spell and regain its original size on its own?"
"Nya?"
The kitten scratched his head in confusion, and then said matter-of-factly, "Fish doesn't know!"
Dumbledore: "... Then ask him."
After a bit of communication with the basilisk, Fish replied, "No nya, Uroboros says he can't even feel that he's been hit by a spell, and he has no idea how to even resist it nya."
The kitten wiggled his ears in triumph.
"Fish's spell seems to be very powerful nya!"
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"Good," Dumbledore nodded with satisfaction, and asked, "How long does your spell last, then? Will the basilisk suddenly return to its original size?"
This was something Fish could answer.
"No problem nya, as long as Fish doesn't undo the spell, Uroboros will stay that way nya.... Fish is awesome!"
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"Very well," Dumbledore pulled out his wand, "One last question, I need to test if it will be hard to undo this spell of yours, tell the basilisk not to resist, I won't hurt it."
"Uroboros... Can nya?"
Fish held the small basilisk and told him about Dumbledore's request.
"Hiss..."
The basilisk spat out its tongue, crawled out of Fish's body of its own volition and swam towards Dumbledore, head erect, staring at him, obviously unhappy with the request.
Dumbledore laughed nonchalantly, then raised his wand and tried a dozen different spells on the basilisk, including and not limited to a detention spell, an expansion spell, a restoration spell, etc.
But none of them worked.
The effect of the [Animal Shrink] spell is to reduce the damage caused by the animal's natural attacks.
In other words, the basilisk's murderous gaze and poison were weakened, but its defenses against spells were still the same as before, and the spell system was different from Fish's druidic spells, so it didn't dispel his [Animal Shrinking] spell.
"That's basically it."
After a few tries, Dumbledore put his wand away.
He was worried that if he crossed paths with Voldemort again, or his Horcruxes, the basilisk would suddenly start attacking the others at his command, but now that he was sure that only Fish could restore the basilisk's size after making it smaller, he didn't have to worry too much.
At most, if the "contact lenses" in its eyes fell out, it would only petrify a few people.
As for the basilisk's venom, that had already been taken care of, as Dumbledore had asked Fish to use a special magical material to seal the hole through which the venom comes out in basilisk fangs.
So even if Uroboros were instigated by Voldemort one day, he would simply make two small holes in Fish's body and there would be no danger to his life.
"Now you may take Uroboros out of the Chamber of Secrets, but, while he is out, do not return him to his original state."
Dumbledore solemnly instructed.
"Yes nya!"
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