Matt Helm : The Betrayers -- Paperback / softback

Matt Helm finds himself in Hawaii, trying to unhatch a plot of unrivalled viciousness. When an agent turns bad, nobody's business is private anymore, and when that agent decides to start a war, someone has to finish him - fast. Between the rogue agent and the stranger who insists she is his sister-in-law, this won't be a relaxing Pacific holiday.