The Pennell Predicament — S. Rodger Bock

Amelia Pennell is the intelligent tween granddaughter of the owner of Pennell Starlines living happily on an isolated world. Everything changes with the news of the destruction of a colonization ship which has crashed on Eden IX with 2,134 souls aboard, Amelia learns of the ship's disturbing, criminal history. As government and other powers descend on her home, she must flee for her life, and make a horrifying choice.