Her body was no longer able to swing the mining pick.
The grandmother also thought that she should find someone to inherit her medical skills.
That day, she watched as Lingyi's neck was submerged in the filthy, smelly waters of the pond.
These waters had soaked many rotting corpses and the pond itself was also a receptacle for all sorts of trash. It was no surprise that prolonged immersion would lead to illness.
But in the faint light of the fire, the grandmother looked at the girl's stubborn face and suddenly her heart softened, reminded of her younger self many years ago.
People rarely saved others because as the water level continued to rise, the effort to rescue someone was better spent on digging more tunnels.
Otherwise, perhaps both the rescuer and the rescued would die in these filthy, stinking waters.
Lingyi ultimately survived.
After a severe illness cured by the grandmother, she began to teach Lingyi medical skills.