The riverbank was breached around Wednesday afternoon. Huang Huoxiu stood in her three-storey house, a few hundred metres away, and watched the water heading towards her.At the same time, she spotted one of her neighbours with three small children, heading out of their village in southern China. Huang screamed on the top of her lungs, “Don’t go any further! You’ll drown!”She took them into her house where, within half an hour, the water had risen to the second floor. They took refuge on the…