We have been studying Journey to Jo'burg by Beverley Naidoo.This is how it starts:

Naledi's Plan

Naledi and Tiro were worried. Their baby sister, Dineo, was ill, very ill. For three days now, Nono, their granny, had been trying to cool her fever with damp cloths placed on her little head and body. Mmangwane, their aunt, made her take sips of water, but still their sister lay hot and restless, crying softly at times. "Can't we take Dineo to the hospital?" Naledi begged, but Nono said Dineo was much too sick to be carried that far. The only hospital was many kilometers away, and Naledi also knew they had no money to pay a doctor to visit them. No one in the village had that much money. "If only Mma was here," Naledi wished over and over as she and Tiro walked down to the village tap with their empty buckets. She tightly clutched the coins in her hand. Each morning the children had to pass the place of graves on their way to buy the day's water, and only last week another baby in the village had died. It was always scary seeing the little graves, but especially this fresh one now. As they came nearer, Naledi fixed her eyes on the ground ahead, trying not to look, trying not to think. But it was no use. She just couldn't stop herself thinking of her own little sister being lowered into a hole in the ground.