You can't win. That's what Aideen's father tells her as she readies for the Wilding, Eachann's most dangerous horse race. It's the same competition that claimed her brother's life four years earlier. Aideen is determined to prove her father wrong. On the back of her horse, Esther, Aideen discovers competing in the Wilding takes more than just good riding. To survive, she must become Wild.