The Unwanted: Throw away children

I was kidnapped. I don't even remember how old I was maybe I was in 5th or 6th grade. Thrown together with a kid, Reznor, the same age as mine and his mood stuck on mad, and two young sisters, Melody and Skye. We lived in a shady motel in a small town with lots of pine trees. We just existed together in days that ran into each other. Until one day we stumbled onto a dead girl. She was Mother's previous 'daughter' before us. From that day on we grew to be a family all to protect our little sisters from being one of Mother's dolls. To my surprise my little sisters were not the damsels in distress. It was a good thing because we all needed to work together to get out alive or at least to get the girls out.