The Bouncy Contraption

Mmph! I trotted down the sidewalk and squeezed straight through a gap in the playground fence. Over in the wood chips stood a faded yellow duck mounted atop a gigantic, coiled black iron spring. Mmmph! I scrambled up the oily coil ring by ring, digging my boots into the steel spirals until I reached the footpeg. Leaning my whole body backward, I threw both mittens over the cold metal handlebar and yanked. Creaaak—sproing! The colossal spring recoiled with tremendous force, whipping me violently back and forth like a loose cork. My boots flapped wildly in the air, but I clamped down tight until the frantic oscillations gradually smoothed into a gentle sway. Mmph!