Diehard — Tony Masero

He found them by accident.
Six beautiful animals lost in the Arizona desert, each one of them of the finest bloodstock and a magnificent prize worth a small fortune.
Diehard Charlie Wexford is the simple yet upright young cowpoke that catches and breaks the wild runaways to the saddle. Then all he has to do is hang onto them until he can complete the sale that will make him a wealthy man.
But other, more acquisitive eyes are eager to get hold of the fine creatures and they don't care to take any prisoners whilst they acquire them. Both true love and harsh death cross young Diehard's path and it is only a showdown with those that would take from him what is his that he can reclaim his due and win the woman he loves.