A group of 5,000 Sudanese has just completed an epic, 14-week, 400km journey home after the end of a 21-year civil war.
Bill Lorenz was one of four International Organization for Migration (IOM) staff who helped them, recording the trip in a diary for the BBC News website. Through his photos, Bill reflects on some of the people and moments that made his mission unforgettable.
This is Binta, eight, who asked for "sweetie". Because she is epileptic, some thought she was bewitched.