Ken Follett

Triple is a spy thriller novel written by British author Ken Follett. It was originally published in 1979. The background of the plot is Operation Plumbat, a 1968 operation carried out by Mossad that did not become publicly known about until 1977.

The Key to Rebecca is a novel by British author Ken Follett. Published in 1980 by Pan Books, it was a noted bestseller that achieved popularity both in the United Kingdom and worldwide. The code mentioned in the title is an intended throwback from Follett to Daphne du Maurier's famed suspense novel Rebecca.