As the battle raged on, Bob stepped forward, katana in hand. The curse mark on his chest burned brightly, its dark energy resonating with the creature's essence.
The beast turned its fiery gaze on him. "You… you are one of mine. You carry my mark."
Bob tightened his grip on his blade. "I carry it, but I don't serve you."
He activated his Sharingan, the three tomoe spinning rapidly. Channeling the full power of the curse mark, he launched himself toward the creature, piercing its chest with his katana.
The world around him shifted. Suddenly, he was no longer in the chamber but in a void of swirling shadows. The creature's true form loomed before him—a writhing mass of darkness and eyes, its presence suffocating.
"This is your end," the creature hissed.
Bob's Sharingan morphed, the tomoe merging into the shape of a Mangekyo Sharingan. "Not today."
He plunged deeper into the void, his mind bombarded with visions of Konoha's darkest moments—wars, betrayals, the massacre of his clan. Each memory threatened to break him, but he pressed on, searching for the creature's core.