The Black Venus Contract by Philip Atlee

When a CIA agent needs rescuing in South America, it's Joe Gall who gets the call, in this thriller from the Edgar Award-nominated author.

Joe Gall is on assignment in Sao Paulo, Brazil, living in a home with a housekeeper named Julietta-who happens to be a conduit to the South American country's notorious October Eighth Movement. The group has abducted a legendary member of the CIA-and it's up to Gall to get him back . . .

This tale of international intrigue and adventure comes from Philip Atlee, "the John D. Macdonald of espionage fiction" (Larry McMurtry, The New York Times).
"I admire Philip Atlee's writing tremendously." -Raymond Chandler