Doris Lessing’s story about a British farming family in post-World War 2 Africa contrasts the richness and beauty of the land with the destructive power of nature. The threat this time is a swarm of locusts. They have already leveled the crops and moved on, but an even greater threat lies ahead. The major theme is survival… for the locust swarm, through instinct and sheer weight of numbers; for the farmers, through planning, preparation, manpower and, when these fail, being prepared to start over. Other themes include helplessness, devastation, the ongoing cycles of struggle against nature, perseverance.