The Glass Marble Race

I pushed past the hem of the long curtain and stumbled upon a heavy glass marble sitting on the wood floor! Inside its crystal belly were swirling ribbons of bright cobalt and amber. I gave it a bold little nudge with my snout. Roll, click! It shot forward across the smooth oak boards, bouncing off the wooden baseboard with a sharp ring before settling in a warm sunlit rectangle. I trotted after it, hooked both front paws over its curved curve, and peeked closely into the glowing glass ripples!