Inside Jed Crawley's bunk house on the Circle Z, a half dozen frightened cowhands were crowded around the bunk on which a dead man sprawled. It was one more in a series of murders... Just like the other murders, there was a knife with the silver initials WH on the haft, and a note which read "I'm not stopping until there's nobody left on this ranch... Get 'em off, or I'll kill 'em off. Wolf Harley."...