The Invisible Assassins

An American computer expert was cut down on a dark street in front of Mack Bolans eyes. Within hours The Executioner was on his way to Japan, where he faced fanatical hatreds that were keener than a swordblade. Alone in an alien land, he waged fierce war to prevent the most hideous secret of World War II from triggering the final act of madness. The odds were against survival with Bolan trapped between the Yakuza, the mt powerful gangster organiation in the world, and a secret army of ninja warriors. But The Executioner would soon make those odds almost even. . . .