Galax-Arena by Gillian RubinsteinJoella, Peter and Liane are right now on the run from the media, and with their dad. Why are they on the run? Well, that's the story Joella tells us. Earlier, she, Peter, and Liane were kidnapped, taken to perform in the Galax-Arena with the pebs, talented children acrobats. Peter and Liane are acrobats and fit in, but Joella is, if anything, out of shape and unfit. She knows that the only thing she is good for is P&E- Pets and Experiments.
The ending does not bring us back to the beginning of the story- at least, I don't think it does. It's ambiguous. But since there is a sequel, I think the ending really isn't the ending. The psychology of this story is deep. The children are survivors, and forced to let each other die, and of course that provides a different sort of interaction between children than we are used to.
Happy reading.