books.google.com - WANTED: Young, skinny, wiry fellows not over eighteen. Must be expert riders. Willing to risk death daily. Orphans preferred. When Colton Wescott sees this sign for the Pony Express, he thinks he has the solution to his problems. He's stuck with his ma and two younger sisters on the wrong side of...https://books.google.com/books/about/Black_Storm_Comin.html?id=x0JzGHtuC40C&q=oxen&utm_source=gb-gplus-shareBlack Storm Comin'