Cemetery Jones and the Gunslingers — William R. Cox

Ned Buntline made Cemetery Sam Jones the hero of one of his notorious dime novels and called him the fastest gun in the West. Now every gun-toting cowboy alive is out to prove it ain't so. Sam decides to shut Buntline up real quick before the cemeteries start overflowing. Of course, Sam doesn't reckon on Denver gambling brawls, New York gunfights, Indians on the warpath, and bloodthirsty outlaws after gold in the hills of Montana. But Cemetery Jones doesn't surprise too easy....