Containing a new appreciation of Sir Alec Guinness by John le Carre, this stunningly designed tie-in book will be treasured by le Carre and Guinness fans alike.

Smiley and his people are facing a remarkable challenge: a mole - a soviet double agent - who has burrowed his way in and up to the highest level of British Intelligence. His treachery has already blown some of their vital operations and their best networks. The mole is one of their own kind. But which one