Air rushed back into Nan Wan'yan's nostrils. She retched, spewing a pool of blood, then slumped against the edge of the bathtub, gasping for breath.,She glanced inadvertently and saw her own face reflected in the surface of the bathwater.,Two little girls looked exactly alike. The girl on the wall had her hair in a bun and was clinging to the wall tightly. The girl with two braids downstairs, sobbing, said, "Big sister, I...I'm scared..."。