A memoir that captures a young athlete's battle with a devastating diagnosis and the courage and perseverance that has propelled her to the top of a Paralympic sport.For seven years, Sydney Collier enjoyed the life of a happy, active child, with caring, supportive parents and siblings. She ran through sprinklers and played with neighborhood friends. And she fell in love with four-legged animals, especially horses. Her mother encouraged her to ride, and Sydney was good at it, finding hersel...