C490 The Last Stronghold!(part I)

Deep within Trintis, nearly a thousand meters below the surface, the Demon Cavern was alive with activity.

Boom! Boom! Boom!

A succession of thunderous blasts echoed throughout the cavern. The dimly lit space was suddenly aglow with two-meter-long, water-blue arrows that illuminated the entire expanse.

Ahead of these luminescent projectiles, within the vastness of the Demon Cavern