The Resilient Coil

Following the baseboard beyond the bookcase, my march led directly to the gap of the ajar doorway. Anchored into the skirting board stood a tapered spiral of coiled steel capped with firm white rubber. It guarded the threshold with silent tension. I took a measured stance, grasped the rubber tip with both gauntlets, and pulled the metal column sideways. The spiral bowed, gathering fierce elastic resistance beneath my palms. Releasing my hold, the coil snapped back with a sudden, oscillating shudder that hummed cleanly through the wood beneath my boots. A flexible defensive mechanism of exceptional calibration. The passage ahead remains secure.