Author Rosanna Hansen travels to Namibia, Africa, to help cheetahs, one of the world's endangered species. She helps save a cheetah cub from a life-threatening injury. She pets a thoroughly tame cheetah. She sets up a cheetah race. (Cheetahs love to run.) And she meets many cheetahs that are not so tame. Humans are taking over cheetah habitat, so the world's fastest runners are running out of space and hanging on in low numbers. People are working to save them one by one through organizations like the Cheetah Conservation Fund (CCF), which runs the reserve the author visits. Young readers will revel in this up-close perspective on the magnificent cheetah.