A storm rages. A branch breaks off a great willow tree and begins a fascinating journey through streams and rivers and finally out to sea. Then one day, it washes up onto a beach, weathered and smooth--now a piece of driftwood. A beachcombing boy brings it home and makes a mobile with it. This lyrical book encourages readers of all ages to observe nature and the journeys of all things in the natural world in a new and unique way. Instructions for making a mobile are included.