Eye of the Needle by Ken Follett

One enemy spy knows the secret to the Allies' greatest deception, a brilliant aristocrat and ruthless assassin -- code name: "The Needle" -- who holds the key to ultimate Nazi victory.
Only one person stands in his way: a lonely Englishwoman on an isolated island, who is beginning to love the killer who has mysteriously entered her life.
All will come to a terrifying conclusion in Ken Follett's unsurpassed and unforgettable masterwork of suspense, intrigue, and the dangerous machinations of the human heart. From Goodreads.

I read this for my Literary Exploration challenge as my espionage book. This is not a genre I usually like to read but this was a pleasant surprise. I like us following "The Needle" for several years.

This book qualifies for:
Goodreads 2013 Reading Challenge
Serious Readers 2013
Tower Teams Read 2013-2
2013 Ebook Challenge
2013 Mammoth Book Challenge
2013 Literary Exploration Reading Challenge
Author Alphabet Reading Challenge
Setting Alphabet Reading Challenge