Iestyn did struggle then, trying to pull forward to get to his sister. "Stop! Don't!" he cried, because not only was it drowning his sister, it was wasting their precious water. The fingers of the demons who held him were pinching, and they pushed him down onto his knees so he couldn't kick or wrestle free.
The water was pooling on the floor, starting to soak into their bedding that still was balled up in the bathroom, and that disgusting green dress.