As the last rune was etched onto the surface of the crystal, the deep blue stone began to tremble violently, simultaneously emitting subtle and dense high-frequency resonant waves invisible to the naked eye, sweeping through the surrounding air like countless tiny blade edges, causing air molecules to oscillate and produce a crisp, sharp sound.
These sounds pierced through the night, with an eerie sense of deterrence that made the guards in the camp stop their actions and unconsciously hold their breath and listen closely.
Reina slowly opened her eyes, the resolve in her made the fatigue on her face vanish.
"I have completed the transformation, this is our only chance to counterattack the insect swarm."
Her tone was firm, exceedingly calm.
"As long as we deploy this high-frequency resonator into the core area of the swarm, once they consume it, it will trigger intense internal vibrations, causing them to collapse and perish."
