The Invisible Assassins — Don Pendleton

Deadlier than the Mafia!

An American computer expert was cut down on a dark street in front of Mack Bolan's 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 most powerful gangster organization in the world, and a secret army of ninja warriors. But
The Executioner would soon make those odds almost even....