This lovely book tells the story of an environmental project that brings hope to an impoverished village on the desert coast of Eritrea. A scientist helps villagers transform their lives by teaching them to plant mangrove trees along the seashore; these soon provide rich feeding for their herds of goats and sheeps and bring many other benefits. The story - with its beautiful collage style illustrations - is told in two strands: a cumulative poem alternating with a prose commentary. An afterword gives more information about the project and uses many photographs to explain its working.