Badlands Justice

this is the Description that is on the back of the BooK: "
BACK DOWN--or measure up! Young Joe Wolverton was in a spot where he had to grow up fast. With his devil-may-care-brother Holly, suspected of riding with the wild bunch, Joe had to stick by him, but sometimes Joe was so damned scared he'd rather have died.
Joe was just a gangling kid but HE WAS NUMBER ONE ON THE KILL LIST! If he figured to go on living, he'd have to tie down his gun and go looking for the man who'd sworn to plant him on sight!"