Spinning the Glass Rainbow

A heavy triangular glass prism was resting right on the sunlit windowsill! Its crystal edges were splitting the bright morning beam into a crisp ribbon of red, green, and violet across the paint! Naturally, I bounded right up and nudged the cool glass corner with my snout! Clink! The prism pivoted on its polished base with a quiet scrape, sending the dazzling rainbow sweeping straight across the wall and right over my tail! I hopped sideways, tail swishing with excitement, and bumped the glass edge again just to watch the glowing colors dance along the trim!