With a final, coordinated effort, the adventurers struck. Amara's daggers pierced the figure's heart, Thrain's warhammer shattered its defenses, and Keldor's sword cleaved through its body. Eldara's spells erupted in a blaze of light, and Lyra's radiant beam burned through the darkness.
The figure let out a final, ear-piercing shriek as its form disintegrated, the dark energy dissipating into the air. The chamber fell silent, the oppressive darkness lifting as the adventurers stood victorious once more. Their breaths came heavy, their bodies weary but unbroken.
As the last remnants of the dark energy faded away, the adventurers knew they had not only defeated the creature but had also vanquished the source of the evil that had plagued the land. The glowing runes on the walls dimmed, their power extinguished. The chamber, once filled with malevolent energy, now felt calm and serene.