A piercing pain suddenly flooded her whole body. Before Nan Wanyin could react, someone smashed her head against the edge of the bathtub.,A deathly silence hung in the air of the swimming pool.,Two little girls looked exactly alike. The girl on the wall had her hair in a bun and was holding tightly to the wall, while the other girl with two braids cried out, "Big sister, I... I'm scared..."。