Whispering Skull

"In search of work, cow-puncher Jeff Stewart is heading south. Making his way through the strange, untamed landscape that fringes the arid desert, he is riding up into the maze of canyons when there is distant gunfire and a massive explosion. With the sound of bullets ringing in his ears, the naive cowboy has no idea that the savage Barton gang is en route to the notorious prison, Fort Addams, to free their leader - and that soon Stewart and the gang will be on a deadly collision course . . ."--Page 4 of cover.