Echo Tumble Down the Stairs

I pushed past the heavy fire door at the end of the hallway and found a colossal hollow stairwell! A discarded empty plastic soda bottle was resting on the top step. Naturally, I gave it a massive running dropkick! It tumbled bump-bump-bump down the hard concrete steps, each bounce booming out like a massive hollow bass drop inside the narrow concrete shaft! I raced right down after it, sliding along the cool painted metal rail and catching the rolling bottle with both feet at the landing flat!