Kinetic Arc

I pressed the sole of my foot against a smooth glass marble wedged in the lower track of the window. Stepping off the desk across the chair arm had brought me down into this wide wooden ledge. With a controlled push from my knee, I propelled the sphere along the groove. It picked up speed, humming softly against the painted pine before striking a brass latch screw with a clear, metallic click. The vibration carried faintly through the wood. I paced forward three strides to catch the rebound, pinning the sphere firmly beneath my heel.