Straightedge Speed Run

That aligned brass paperweight left a thick wooden drafting ruler angled across the parquet! The raised beveled edge formed a thirty-centimeter high-speed monorail. I rolled back to calibrate my stance, dropped into gear, and throttled down the planks. My right tires locked into the ruler's grooved millimeter trench, humming like a turbine against the beechwood grain! Momentum surged as the wood vibrated under my chassis, shooting me off the metal-tipped end in a lightning-quick dash that braked flush against a heavy dark leather bookmark.