The curtain of night gradually receded, casting faint dawn light over the ravaged Mistmorn Academy. The collapsed clock tower smoldered with wisps of smoke, the ruins permeated with acrid gunpowder and the metallic tang of blood. Avy, covered in wounds, clutched the cracked Blood Moon pendant whose warmth pulsed in sync with her heartbeat, each throb accompanied by a sharp sting.
Ryan leaned against a broken wall, half his body corroded by blood poison, skin mottled sickly gray-black with bulging veins resembling earthworms. Kayla stood vigil nearby, her eyes sharp with both worry and steely resolve.
"We must stop Vincent and Arkasha," Avy's weary voice held iron determination. "We can't let them awaken the demon and destroy everything."
Ryan struggled to his feet, swaying but resolute. "Vincent won't relent. He'll exploit the lunar eclipse's power to complete his scheme. We need countermeasures."
Kayla's brow furrowed. "Wolf Clan legends speak of ancient sealing power. Their sacred grounds might hold answers."
The trio ventured into wolf territory through mountain trails, rustling trees whispering old secrets. Suddenly, guttural growls erupted as wolfmen emerged from the woods - hulking, furred figures with glowing eyes led by a scarred elder.
"Who dares trespass?" the elder snarled.
"I'm Kayla, Guardian's daughter. We seek help against the bloodkin conspiracy," she pleaded.
Ryan stepped forward, veins pulsing black. "Vincent's demonic ambitions threaten all. We share this fight."
After tense deliberation, the elder led them to a valley sanctuary - an ancient altar carved with luminous runes at its center. "Three keys unlock this sealed power: guarded by ice spirits in glacial peaks, sea beasts in abyssal ruins, and fire demons in volcanic chasms."
They split: Ryan braved blizzards to duel an ice golem, shattering its crystalline core. Kayla dove into crushing depths, outmaneuvering a kraken's tentacles to strike its underbelly. Avy faced a lava-wreathed fire demon, her pendant's light forging a radiant blade for the killing blow.
Reunited at the altar, the keys activated a surge of purifying energy... just as Vincent and Arkasha materialized with dark aura. "Childish efforts!" Vincent sneered, restored body crackling with power.
In the cataclysmic battle, Avy discovered Arkasha's link to her pendant. Channeling its full power in a blinding radiance, she sealed the demoness at the cost of falling comatose. Vincent fell to Ryan and Kayla's combined assault.
Dawn reclaimed Mistmorn Academy, sunlight healing scarred lands. As Avy slept surrounded by her companions, they knew this victory was but one chapter in the eternal struggle between light and darkness.
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