The next morning, Noah began his routine with a brisk jog around the serene lake, the cool morning air filling his lungs. After completing his stretches and exercises, he prepared a light breakfast of fruits and dried bread from his inventory. With his energy restored, he took a quick dip in the lake to freshen up, the icy water invigorating his senses.

    "Today''s the day," he muttered, adjusting his gear and gripping Nemesis tightly. His mission was clear: find the entrance to the final floor and conquer whatever challenge awaited.

    The search wasn''t easy. The ninth floor''s layout was a labyrinth of dense forests, rocky canyons, and shimmering lakes. Using his Presence Detection skill, Noah avoided weaker monsters, focusing entirely on locating the entrance to the last floor.

    After hours of exploration, he stumbled upon a massive stone door embedded in a cliff face. Its surface was intricately carved with arcane symbols that glowed faintly, indicating it was sealed by magic.

    As he approached, the symbols rearranged themselves into three glowing inscriptions. A voice echoed in his mind, deep and resonant:

    "To proceed, you must answer our riddles. Solve all three, and the door will open."

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    Noah stepped forward, ready for the challenge.

    Riddle 1: "I am not alive, yet I grow; I have no lungs, yet I need air; I have no mouth, and yet I drown. What am I?"

    Without hesitation, Noah replied, "Fire." The first inscription vanished.

    Riddle 2: "The more of me you take, the more you leave behind. What am I?"

    After a moment''s thought, he answered,

    "Footsteps." Another inscription disappeared.

    Riddle 3: "I am always in front of you but can never be seen. What am I?"

    Smirking, Noah answered, "The future."

    The final inscription vanished, and the massive stone door rumbled as it began to open.

    Realizing the ogre''s attacks were too powerful to block directly, Noah changed tactics. He used Telekinesis Lv2 to hurl debris from the shattered ground at the creature, distracting it momentarily. Seizing the opportunity, he charged again, aiming for the joint where the armor on its leg met the exposed skin.

    His blade struck true, slicing through the vulnerable area. The ogre roared in pain, staggering slightly as blood spilled onto the frost-covered floor. The red head turned toward Noah, flames gathering in its maw for a devastating attack.

    Noah anticipated the move and activated Shadow Steps, vanishing just as the flames engulfed the spot where he had been standing. Reappearing above the ogre, he aimed a downward slash at its blue head. The blade grazed its thick hide, drawing a shallow cut, but the blue head retaliated instantly, releasing a shockwave of icy wind that threw Noah backward.

    He crashed against the ground but rolled to his feet, his breathing heavy. "This thing''s tough," he muttered, his eyes scanning the room for an opening.

    The ogre seemed to grow more aggressive, its elemental attacks becoming faster and more chaotic. Realizing he couldn''t hold back any longer, Noah activated Night of Death, enveloping himself in a shroud of shadowy energy. His presence became harder to track as he darted around the room, his movements like flickering shadows.

    He combined the skill with Fangs of Insanity, unleashing a series of vicious, rapid strikes aimed at the ogre''s limbs. Each blow chipped away at the creature''s armor and flesh, forcing it to roar in frustration.

    The ogre retaliated with a powerful dual-elemental attack: a spiraling vortex of fire and ice that tore through the room, leaving destruction in its wake. Noah dodged and weaved through the chaos, the heat and cold biting at his skin despite his mana defenses.

    "Time to end this," Noah growled, summoning his trump card. He activated Infernal Tempest, a devastating skill he had only recently acquired.

    The air around Noah ignited with swirling flames as the room darkened, the light drawn into the vortex of fire forming above him. He poured every ounce of his mana into the attack, the sheer energy causing the ground to tremble.

    The ogre sensed the danger and roared, charging forward in a desperate attempt to stop him. But Noah was faster. With a shout, he released the full power of Infernal Tempest, hurling the massive vortex of fire directly at the ogre.

    The attack struck the creature head-on, engulfing it in an explosion of fire and shadow. The room shook violently as the flames consumed the ogre, its roars fading into silence.

    When the smoke cleared, the Twin-Headed Infernal Ogre lay motionless, its massive body charred and broken. The red head and blue head slumped lifelessly to the side, and the oppressive aura of the boss room dissipated.

    Noah stood amidst the wreckage, his breathing ragged. His body ached from the intense battle, but a triumphant smile spread across his face.

    [System Notification:]

    You have defeated the Dungeon Boss: Twin-Headed Infernal Ogre (Rank: A).

    As the boss dissolved into shimmering light, a golden treasure chest materialized in the center of the room. But before opening it, Noah took a moment to steady himself, his mind racing with excitement and relief.@@@@