A cyclone steeped in sinister energy slowly took shape in the depths of Dragon Abyss, sweeping toward the Immortal Army's fortress across from it.
Boom! Boom! Boom! The cyclone slammed into the fortress's formation, making it tremble slightly.
The fortress's defenses were formidable. The storm could do little to affect it in the short term.
At that moment, countless cyclones were slowly forming deep in Dragon Abyss, surging toward the Immortal Army's fortress one after another.
Under this relentless assault, it was only a matter of time before the fortress's defensive wards went from trembling faintly to shaking the very earth and mountains.
Crack! The Immortal Army's formation held out for a while before a gap was torn open.
"Quick, seal the breach!" the Immortal Army general roared himself hoarse, immediately dispatching troops to plug the opening.
At the same time, a dense mass of dragon remnants poured through the breach, crashing straight into the Immortal Army formation standing ready to meet them.
"Pure Yang Heavenly Dipper Fire!" the Immortal Army general bellowed, waving the scarlet banner in his hand. Thirty-six Heavenly Dipper Star Arrows, wrapped in scarlet flames, surged forth as a vast sea of fire roared around them.
The first wave of dragon remnants to break through the formation's gap was swallowed by the sea of fire. Amid their shrill screams, the remnants were burned to ashes and vanished into nothingness.
The Immortal Army had guarded this place for years, devoting enormous effort to studying ways to counter the dragon remnants. They had honed their methods through battle, and in a direct clash, they proved remarkably effective at suppressing the enemy.
By contrast, the dragon remnants had always relied on relatively limited methods. Only during the height of extreme yin, with the celestial phenomenon to conceal them and