Chasing the Crystal Rainbows

I marched right over to the bright window ledge! A hanging glass prism caught the morning sun, casting little sparkling patches of rainbow all over the white painted sill. I rushed forward and stretched out both hands, trying to trap a brilliant strip of blue and green beneath my palms. But whenever I stepped closer, the bright colors danced away across my shoes and skipped right onto the wall. I couldn't catch them, but every jump made the glass chime with a tiny ringing sound, turning the whole sill into my own glowing stage!