A Rolling Challenge

Staring from the balcony railing wasn't enough; I took the fire escape stairs down into the courtyard garden. Right in the patch of dry grass, I found a red tennis ball lodged against an overturned clay flowerpot. Time for a real test of speed! I prodded the fuzzy felt with the tip of my staff, and the thing surged forward across the stone pathway. I sprinted right after it, matching its crazy roll stride for stride, until it bumped a dandelion root and spun into a halt. I planted a foot right on top of the curve. Victory claimed on open ground!