Acoustic Proof

A discarded hollow copper pipe fitting lay wedged beneath the tank’s support truss, gathering stagnant heat. Sitting inert under my surveillance was out of the question. I hauled the heavy cylinder upright onto the flat iron railing and inspected its narrow bore. Such precision geometry demands acoustic activation. Planting my boots firmly into the diamond mesh, I leaned in, cupped my gloved hands around the flanged lip, and expelled a sharp, thunderous battle bellow straight down the chamber. A deafening, metallic reverberation hummed through the copper and rattled the iron struts beneath my soles. Hear that? Even Shibuya's airspace vibrates under my command. Undeniable proof.