The Glass Marble Track

I pushed past the heavy stairwell door looking for a fun new test for my paws! Up on the low window ledge, an unpainted wooden ruler was propped at an angle against a ceramic planter. Right at the top edge, someone had left a clear cat's-eye glass marble resting in a shallow groove. I clamped my Poké Ball heart close with one arm and gave the marble a firm flick with my right paw. It rattled down the wooden slope in a blur, leaped off the end, and landed squarely inside a small metal mint tin with a loud *plink-clatter*! I bounced on both feet, perking my ears straight up at the marvelous noise!