Two young brothers are sent away to work in a factory to earn money to send back to their family. When they go missing in a flood, however, their family has to live with the consequences.

Piprahi is a father of five. Because of his family's poverty, he decided to send his two sons, aged 10 and 14, to work in a factory 12 kilometres from their village in India's Bihar state, one of the country's poorest.

Now, Piprahi is calling the factory's phone number several times a day. Every time he calls he hears an out-of-order message. His sons have been missing for a week, ever since floods swept through the district. With each day that passes, the family's hope fades. The boys' mother and three siblings are still trying to come to terms with what has happened.

Seven-year-old Sabita may be too young to understand, but she fondly remembers spending time with her brothers when they came home for holidays.

The floodwaters in Piprahi's village rose to six feet, forcing villagers to take shelter on higher ground, where they had to sleep out in the open, with thousands of other people and livestock.

As well as facing the possible loss of their two sons, Piprahi and his wife must worry about the survival of their other three children. The family has lost all of its possessions, including stores of rice, three goats and a cow - all washed away in an instant.

For now, the family has taken refuge in a school that has been transformed into a relief centre for displaced families.

World Vision is providing displaced families in this centre with relief items including rice, pulses, sugar, biscuits, candles and matches, but with hundreds of people arriving every day, health and hygiene are now a major concern.