The iron crunch of the first cage resonated through the cavernous Chamber of Secrets, a visceral, terrifying sound that galvanized the Ministry team into immediate action.
The Basilisk, now permanently blinded by Fawkes, reared its massive, armored head. Dark, sizzling venom dripped from its fangs, hissing as it hit the damp stone floor. But its triumph was short-lived.
The impact of its strike had shattered the second iron cage positioned near the base of the Slytherin statue. The metal twisted and snapped, and from the wreckage, two surviving roosters erupted in a frantic, squawking flurry of feathers.
They hit the ground running, terrified by the explosion of stone and scale. And in their panic, they did exactly what nature demanded they do.
They crowed.
It wasn't the polite, measured call of a farmyard morning. It was a harsh, strident, ear-splitting shriek of pure avian terror that echoed off the high, damp ceiling of the Chamber.
The effect on the Basilisk was catastrophic.
The millennia-old apex predator didn't just flinch; it convulsed. A horrifying, high-pitched scream tore from its throat—a sound that vibrated the very air in Orion's lungs. The beast whipped its massive head back and forth, its body thrashing wildly as if struck by invisible lightning. The crow of the rooster wasn't just a deterrent; it was acoustic poison.
"Target is compromised!" Amelia Bones roared over the din, her monocle glinting in the chaotic wand-light. "Concentrate fire! Break its posture!"
The Hit Wizards didn't hesitate. The defensive perimeter collapsed into a firing line.
"Confringo! Reducto! Bombarda Maxima!"
A blinding, deafening barrage of high-yield combat magic erupted from twelve wands simultaneously. The spells streaked through the dissipating fog, slamming into the Basilisk's thick, green scales.
The magic didn't penetrate the armor, but the kinetic force was staggering. The beast was hammered backward, sparks flying where the curses impacted its hide. It shrieked again, its jaw snapping blindly at the source of the pain, its movements uncoordinated and frantic.
It lunged toward the source of the crowing, its massive snout crashing into the stone where a rooster had been a second before. The bird fluttered away, crowing louder, driving the snake further into agony.
"Keep it contained!" Kingsley bellowed, firing a thick, glowing chain of magic that wrapped around the beast's thrashing tail.
But a sixty-foot serpent in the throes of agonizing death is not easily contained.
The Basilisk whipped its tail in a blind, panicked arc. The sheer mass of the appendage tore through Kingsley's magical restraint like tissue paper. The tail swept across the floor, catching one of the Hit Wizards squarely in the chest.
With a sickening CRACK, the wizard was launched through the air, slamming brutally into one of the towering, snake-entwined stone pillars. He crumpled to the floor, motionless.
"Man down!" a Curse Breaker yelled, abandoning the firing line to drag the injured man behind cover.
From their position behind the rear columns, the Hogwarts faculty engaged.
"Incarcerous Maxima!" Professor McGonagall shouted, her wand moving in a sharp, complex pattern. Thick, steel-cabled ropes shot from her wand, wrapping around the Basilisk's midsection, attempting to pin it to the floor.
"Diffindo!" Snape hissed, aiming a vicious, localized severing charm at the softer scales near the beast's ruined eyes. It drew a thick line of dark blood, but the snake merely roared louder.
Dumbledore, moving with terrifying, fluid speed, was casting environmental transfigurations, turning the water on the floor into thick, clinging ice to impede the serpent's movements.
Orion watched the chaos from behind the pillar, his heart hammering a steady, icy rhythm against his ribs. The adults were handling the raw damage output, but the beast was still thrashing, still lethal, and the roosters were beginning to scatter, their crowing becoming sporadic as they sought cover.
The acoustic weapon needs amplification, Orion analyzed instantly. And the beast needs a localized distraction to stop it from randomly sweeping the room.
He stepped out from behind the pillar, ignoring Dumbledore's previous instruction to stay hidden. He raised his Hawthorn wand, his mind shifting into the hyper-focused, perception-based casting he had cultivated all year.
He didn't aim at the snake. He aimed at the two terrified birds scrambling near the statue.
"Sonorus," Orion commanded, casting the amplification charm precisely on the two roosters.
The result was immediate and devastating. The next time the roosters crowed, the sound didn't just echo; it blasted through the Chamber like a physical shockwave. It was deafening, a wall of pure, agonizing noise.
The Basilisk shrieked, its massive body seizing violently. It reared up, nearly touching the ceiling, its jaw unhinged in pure torment.
Orion didn't stop. He needed to keep its attention focused upward, away from the Aurors on the ground. He channeled his intent, visualizing the frantic, aggressive flock he had failed to conjure so many times before. But now, he understood the puppet strings.
"Avis! Oppugno!"
With a sharp, fluid whip of his wand, a flock of eight large, noisy magpies burst into existence. They flew with aggressive, programmed intent directly at the thrashing head of the Basilisk.
The magpies swooped and dived, pecking relentlessly at the bloody, ruined eye sockets of the beast.
The Basilisk, blinded, deafened by the amplified crowing, and now physically harassed by the dive-bombing birds, completely lost whatever remained of its predatory focus. It snapped wildly at the air, its massive fangs biting nothing but mist and feathers.
Harry Potter, standing behind a neighboring pillar, seemed to break from his terrified paralysis. Seeing the beast distracted, he stepped out, his face pale but set with Gryffindor determination.
"Reducto!" Harry yelled, firing a surprisingly solid curse that hit the snake's lower jaw, staggering its head back.
The combined assault was overwhelming. The Ministry's heavy artillery battered its flanks, the professors restricted its movements, the birds blinded its remaining senses, and the amplified crowing of the roosters tore its nervous system apart from the inside out.
The Basilisk thrashed one final, colossal time.
It reared high into the air, a terrifying silhouette against the wand-light, its jaw opened in a silent scream of ultimate agony.
And then, its strength simply gave out.
The massive body collapsed. It fell forward, its colossal head slamming directly into the carved stone face of Salazar Slytherin with an impact that shook the very foundations of the castle. The stone cracked, dust raining down from the high ceiling.
The sixty-foot serpent hit the flooded floor with a deafening, resounding SMASH, sending a wave of dirty water washing over the boots of the Hit Wizards.
It twitched once. A long, shuddering exhale hissed from its ruined jaws.
And then, it was perfectly, permanently still.
The silence that rushed back into the Chamber was absolute, broken only by the dripping of water, the heavy breathing of the combatants, and the distant, amplified clucking of two very confused roosters.
Orion slowly lowered his wand, the Avis flock dissolving back into the ether. He leaned against his pillar, feeling the adrenaline begin to ebb, replaced by a profound, hollow exhaustion.
He looked at the mountain of green scales lying dead in the center of the room.
"Victory," Orion whispered into the quiet dark.