The Key to RebeccaBy: Ken Follett The Key to Rebecca is a gripping espionage thriller set during the Second World War, from master storyteller and author of The Pillars of the Earth, Ken Follett. A Ruthless Spy 1942. Alex Wolffs goal is Cairo. Following a relentless trek across the scorching Sahara, he arrives in the city with a copy of Daphne du Mauriers Rebecca, a lethal blade and a trail of bodies in his wake. Known to his handlers as the Sphinx, Wolff is a Nazi spy