THE GREATEST WESTERN WRITER OF THE 21ST CENTURY  From national bestselling authors William W. Johnstone and J.A. Johnstone comes the latest book in their magnificent and epic saga of the violent American West and the men who tamed it . . .  Proud Enough To Die . . . The MacCallister clan has traveled far and wide, but none has traveled harder than Falcon MacCallister. Hired by a wealthy cattle baron, Falcon sets out from San Francisco for the town of Laramie with a magnificent Arabian horse in tow—and rides into a storm of treachery and murder . . .  But Revenge Is Even Sweeter Already stalked by a vengeance-crazed Yuma prison escapee, Falcon is distracted by two beautiful women—a seductress with a voice like an angel and a lovely widow with a gift for guns—while another outlaw lays down a villainous trap. No doubt about it: blood will be shed. When and how is only a matter of one man's swift revenge . . .