Elmore Leonard 
Forty Lashes Less One [EPUB ebook] 

The hell called Yuma Prison can destroy the soul of any man. And it’s worse for those whose damning crime is the color of their skin. The law says Chiricahua Apache Raymond San Carlos and black-as-night former soldier Harold Jackson are murderers, and they’ll stay behind bars until they’re dead and rotting. But even in the worst place on Earth, there’s hope. And for two hard and hated inmates — first enemies, then allies by necessity — it waits at the end of a mad and violent contest … on a bloody trail that winds toward Arizona’s five most dangerous men.