The vibrations in the floor were no longer just a dull, ambient hum easily ignored amid the chaos. They were strong, frantic, and rapidly approaching, transmitting directly through the soles of Sol's boots and rattling his aching bones.
The high-frequency clicks of thousands of enraged, panicking ants echoed down the labyrinthine tunnels like a rising mechanical tide. And It wasn't just the light footfalls of the rusted-red soldiers, beneath that chaotic static was the heavy, rhythmic thudding of massive Layer 2 Commanders tearing through the earth.
They were coming. And they were coming fast.
Sol ripped his gaze away from the dark, gaping maw of the tunnel entrance and turned his focus entirely to the center of the room.
