C789 Going over to Take a Look

A violent tremor, accompanied by an explosion, shook Deepmount City, triggering the city's defensive array to activate automatically, casting a bright yellow glow.

The shaking was intense but brief, fading away after just a dozen or so breaths. The residents of Deepmount City were left bewildered and stunned, uncertain of what had just transpired.

Why had there been such a disturbance