The Killing Zone is an unauthorised James Bond novel by Jim Hatfield.
[3] The novel begins with the murder of Bill Tanner by Klaus Doberman, a German-South American drug lord.
According to the cover blurb on the back of the book, "In this new high voltage spy thriller, Secret Agent 007 must "liquidate" ruthless billionaire kingpin Klaus Doberman.
But James Bond has his hands full as he battles a luscious lady assassin who offers lethal love Russian style and a slit-eyed Oriental sadist who is an elusive and deadly Ninja.
Aided by his confederate Lotta Head and his old CIA buddy Felix Leiter, 007 is pitted against Klaus Doberman in his heavily armed fortress high in the Mexican Sierra Madres ... in the most bloodcurdling death duel in the great Bond saga."