The Devil's Paintbox

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 die on the Oregon Trail, and the long wagon journey i...