When almost-16-year-old Aiden Lynch and his little sister, Maddy, first meet trailrider Jefferson J. Jackson, they're eating clay and hunting grasshoppers on the remains of their family's drought-ravaged Kansas farm. In short, the two orphans are starving to death, so when this man Jackson offers an escape--a 2000-mile journey across the roughest country in the world--Aiden knows it's their only choice. They say there are a hundred ways to...