After Su Yao channeled all her supernatural abilities into the runes, the runes on the ice surface shone brightly, emitting a dazzling light the moment they came into contact with the energy barrier. Su Yao kept her eyes tightly closed, enduring the impact of the energy collision. The powerful recoil made her body tremble slightly, but she gritted her teeth and persevered, continuously increasing her output of supernatural abilities.

With a violent energy fluctuation, cracks appeared on the energy barrier. Seeing this, Su Yao desperately channeled her power, veins bulging on her forehead. Finally, with a crisp sound, the energy barrier dissipated like shattered glass.

She had just breathed a sigh of relief and hadn't even had a chance to act when the whirlpool in the frozen lake suddenly accelerated its rotation, the water began to churn violently, and countless ice-blue jellyfish surged out. These jellyfish had nearly transparent bodies, and their long, slender, and highly venomous tentacles beneath their umbrella-shaped bodies swam rapidly towards Su Yao.

Su Yao quickly retrieved a pair of specially made gloves from her spatial storage. These were defensive artifacts she had obtained from the ruins, capable of withstanding a certain degree of elemental damage. She put the gloves on, preparing to face the jellyfish's attack. The jellyfish launched the first attack, their tentacles shooting towards Su Yao like arrows. Su Yao nimbly weaved through the tentacles, simultaneously using her wind-elemental abilities to blow away the approaching tentacles.

However, there were too many jellyfish. Su Yao was careless and a tentacle grazed her arm. A sharp pain shot through her, and she felt her arm begin to go numb as the toxin spread rapidly. She immediately used her fire ability to burn the wound on her arm, stopping the toxin from spreading further.

While dodging the jellyfish attacks, Su Yao discovered that the jellyfish's movements were affected by the icy lake's currents; they became sluggish near the whirlpools. Therefore, she began moving towards the edge of the whirlpools, using her spatial abilities to evade the jellyfish's attacks as she went.

As she approached the edge of the whirlpool, she retrieved a sonic stone she had found in the ruins. This sonic stone could emit sound waves of a specific frequency, which could interfere with living organisms. Su Yao activated the sonic stone, and powerful sound waves spread outwards from her. Affected by the sound waves, the jellyfish became disorganized, and many began to collide with each other.

Seizing the opportunity, Su Yao channeled her power to form a giant ice axe and charged towards the jellyfish swarm. With each swing, she severed several jellyfish tentacles. Sensing the threat, the jellyfish concentrated their attack on Su Yao. Using her agile movements and her power-based shield, Su Yao fought bravely through the jellyfish swarm.

After a fierce battle, Su Yao finally eliminated most of the jellyfish. At this moment, the whirlpool in the frozen lake became even more violent, and something seemed about to burst forth from the lakebed. Su Yao watched the lake surface warily, gripping her weapon tightly.

Suddenly, a colossal ice dragon burst forth from the vortex. Its body blotted out the sky, its scales as sharp as ice shards, and its eyes radiated a majestic light. As soon as the ice dragon appeared, it unleashed a torrent of frigid dragon breath towards Su Yao. Su Yao hastily teleported to a distance, but wherever the dragon breath touched, the ice surface instantly froze and thickened.

Su Yao knew that this ice dragon was the final obstacle guarding the source of power. She took a deep breath, merging all her supernatural abilities together, her body surrounded by a dazzling array of colors. The ice dragon attacked again, swinging its massive claws towards Su Yao. Su Yao neither dodged nor evaded, charging forward to meet the ice dragon's attack head-on.

Just before making contact with the ice dragon, Su Yao launched her strongest attack. A massive beam of energy shot from her hand, hurtling straight towards the ice dragon's head. The ice dragon, not to be outdone, unleashed an even stronger breath, colliding with the energy beam. Instantly, blinding light and energy surges filled the entire space, causing the ice trees surrounding the frozen lake to tremble violently.

Su Yao felt her supernatural power being depleted, but she didn't give up. Her inner strength sustained her as she continued to channel energy. Finally, the energy beam broke through the dragon's breath and struck the ice dragon's head. The ice dragon roared in pain, its massive body swaying precariously. Taking advantage of the opportunity, Su Yao launched another attack, releasing all her remaining supernatural power to strike the ice dragon's vitals.

In a dazzling flash of light, the ice dragon crashed down, disintegrating into countless ice shards that vanished into the air. Su Yao gasped for breath, exhausted; her body had reached its limit, but her gaze remained fixed on the source of power in the center of the frozen lake. The light there was softer, as if beckoning her. Su Yao walked laboriously towards the source of power, each step bringing with it the warmth and strength of that mysterious force.

As she approached the source of power, the system prompted her that she could try absorbing this power to change the fate of the apocalypse. Without hesitation, Su Yao reached out and touched the light. Instantly, a powerful energy surged into her body, and her consciousness gradually blurred, plunging her into a wondrous state.