Elite wheelchair racer, wrestler, and America's Got Talent contestant Zion Clark joins with New York Times best-selling author James S. Hirsch for a stunning memoir--recounting childhood adversity, awe-inspiring perseverance, and self-invention. When a baby named Zion was born in 1997 to an imprisoned, drug-addicted mother, his future seemed bleak. Born without legs due to a rare condition called caudal regression syndrome,...