Xireon continued to stride forward, muttering quietly to himself, looking quite mad with his eyes shining their usual pure white. Then, he stopped, and seemed to calm down for just a moment. His lightsabers disengaged and returned to his sides. He breathed deeply, and placed his hands out before him.
"I am done with you, Jedi. This game no longer interests me -- prepare to feel the full wrath of the Dark Side," Xireon said, smiling still. Once again, he reached deep down within him, channeling forth the golden fire, an ancient magic that flowed through him like blood, the last remnant of the Blade of Klain.
Innately, he shaped it in his mind. This Jedi, he thought, this Jedi in league with his father, this Jedi who had already caused him a great deal of trouble, would die here, today -- and he would ensure it. Hate boiled over within him as he thought of his father.
Under his breath, Xireon began to mutter what seemed to be meaningless words. They seemed archaic, anachronistic and strange to the untrained ear. And, floating inches away from his hands, what appeared was equally strange; a small ball of brilliant fire, the heat from which could already be felt throughout the chamber.
The ball began to grow, and as it did so, the ground beneath them began to shake. Xireon muttered under his breath still, shaping the ball of energy before him. In truth, the ball was not a creation of fire, but of pure kinetic energy -- the fire being merely a reaction of this energy. The power of the technique was so immense that it pushed the limits of even Xireon's power.
Finally, the muttering ceased. "Goodbye, Last of the Jedi Shadows," Xireon said. And all at once, the ball was flung forth, head and energy radiating from it. The crackle and hum of the flames was so loud as to be audible all throughout the Dark Lord's chamber.
What happened next was altogether unexpected. The ball, flying so quickly it defied the human eye, stopped before it struck Slavatio, mere inches away, hanging in midair as if deciding whether or not to strike him. The look of concentration on Slavatio's face was intense; soon, the shield he had formed around his body became visible, a light blue tinge in the air.
This was not without consequence. As the two energies clashed, a great buzz filled the chamber, a deep monotone that caused it to shake even more violently. More debris fell from the ceiling, and the immense power involved could be sensed clearly. The lesser Sith in the room -- Neradia and Xireon's apprentice, Legion -- sensing this disturbance, fled with such urgency that Neradia didn't even seem to have trouble freeing himself from the rocks Slavatio had been making a habit of burying him in.
They were right to do so.
The Abyssal Fire spell Xireon had used had a rather unpleasant side-effect; if the user was not careful, the kinetic energy was powerful enough to split atoms, causing a nuclear chain reaction. The kinetic energy had occupied one space for too long, had too much pressure put on it by Slavatio's shield.
Xireon stared at the struggling Jedi, realizing what was to come. "Fool," he said coldly and quietly.
And then, without warning, an explosion massive enough to fill the entire chamber with fire and shockwave went off.
* * * * *
Xireon hit the ground somewhere outside the Primus Goluud fortress, in a meadow that broke his fall at least slightly. His rags, singed by the fire, were even more tattered than normal; his ribs felt as if they had been smashed into a million pieces, despite the shield he'd thrown up at the last second.
The Sith slowly rolled on his side, staring off into the distance. Primus Goluud stood even still. The explosion had not been a true nuclear chain reaction; slowed and contained by the ancient enchantments placed upon the fortress and the Dark Lord's chambers, and weakened by Slavatio's shield, it had been powerful enough only to utterly destroy the chamer, destroying the walls around it and shattering the roof, through which Xireon had flown.
Though the effect had been unintended, it had certainly done the job; Xireon was sure that the Jedi could not have survived the blast, after having held his shield in place for so long.
OOC: Legion and Neradia; I moved you out of the room before the Abyssal Fire spell went nuclear because if I hadn't, you'd be dead. Don't complain.