A Slanted Descent

I noticed a smooth metal garden trowel leaning against the iron porch railing. The long wooden handle tilted straight down to the concrete like a gleaming ramp! I climbed up to the railing post, dragging my wheeled rig along. Aligning the tiny red wheel with the center grain of the handle, I gave the brass valve cap a sharp push. Whoosh! It rattled down the timber incline at lightning speed, shooting straight across the bottom step before coming to rest against a rusty iron hinge.