Wither by Lauren Destefano
Series: The Chemical Garden Trilogy # 1
When sixteen-year-old Rhine Ellery is taken by the Gatherers to become a bride, she enters a world of wealth and privilege. Despite her husband Linden's genuine love for her, and a tenuous trust among her sister wives, Rhine has one purpose: to escape—to find her twin brother and go home.
But Rhine has more to contend with than losing her freedom. Linden's eccentric father is bent on finding an antidote to the genetic virus that is getting closer to taking his son, even if it means collecting corpses in order to test his experiments. With the help of Gabriel, a servant Rhine is growing dangerously attracted to, Rhine attempts to break free, in the limted time she has left.
"Rhine. The river that, somewhere out there, has broken free."
-Wither; Lauren Destefano