After reading this book, my son (age 7) has begged for more books by Clyde Robert Bulla. Riding the Pony Express tells the story of that great 19th Century experiment in transcontinental communication by recounting the adventures of 3 children at Owl Creek, one of the way stations at which the Pony Express riders changed horses.
Dick Park is the son of one of the riders, Katy Kelly is the daughter of the way station master, and Little Bear is an Indian boy. How the 3 of them lived and played together and eventually worked together to keep the mail moving is all part of the fun, fast-moving tale.
Clyde Robert Bulla is a boy's dream writer! Lots of action and good character in this book.