Beginning with a child exploring the water in a creek, Morrison imagines how a drop on his finger made its journey through the water cycle. Detailed, multicolored illustrations take readers high in the sky as the red-tailed hawk flies and the raindrops fall, providing a view of the marsh and the mountain stream from above. Finally, the pictures zoom back to a close-up of the boy to complete the circle. Readers can appreciate this narration on two levels: first, as a simple story of the hydrologic cycle; and second, as a search to find various types of plants and animals. Three pages of informative facts about each bird, mammal, and plant pictured are appended.