The transformation of a tiny caterpillar into a vibrant butterfly is one of nature's most amazing events. Mariposa's story is an engaging tale of yearning and destiny. The text and illustrations accurately present the phases of a monarch butterfly's development. The seasonal cycle of milkweed, crucial monarch caterpillar food, is subtly woven into the artwork. By story's end, readers and listeners will celebrate Mariposa's success as well as understand her life cycle.