A Rainbow on the Wall

I scrambled up from the sofa cushions straight onto the wide, sunlit window sill! Right there hung a small glass prism crystal from a thin suction cord. When I nudged it with my nose, it swung gently in circles. Suddenly, brilliant splashes of red, turquoise, and violet began racing all across the white window frame and the wooden sill! I hopped after the brightest patch of blue, patting my front hoof down right where the beam landed on a smooth ceramic plant saucer. Every tiny twitch of the crystal sent the colors dancing in new directions!