Once in a forest, a unicorn named Sparkle discovered that the rainbow had disappeared. Determined to find it, Sparkle embarked on a journey through the enchanted woods. Along the way, she met talking animals who offered to help. They searched high and low, through meadows and over rivers, until finally, they found the rainbow trapped in a dark cave. With a flick her horn, Sparkle freed the rainbow, and it arched across the sky in brilliant colors. The animals cheered, grateful for Sparkle's bravery and magic. And from that day on, the rainbow never disappeared again.