After six weeks in a nuclear submarine gathering computer data on Soviet activity, the mysterious, bespectacled spy known as Patrick Armstrong is desperate to return home. But when he arrives at his London flat, it appears to be occupied by someone who looks just like him - and he finds himself propelled into the heart of a conspiracy stretching from the remote Scottish highlands to the Arctic ice. “Menacing, beguiling ... a vintage Len Deighton thriller.” – Times Literary Supplement “Tremendous… a must read.” –  Daily Mirror “The poet of the spy story.” —Sunday Times “Len Deighton’s spy novels are so good they make me sad the Cold War is over.”—Malcolm Gladwell “Few authors writing in the rigorous and finite genre of spy fiction have mastered the craft as well as Deighton.”— Chicago Tribune “Deighton is so far in the front of other writers in the field that they are not even in sight.”— Sunday Times  “What raises Deighton's genre to art is not only his absorbing characters but his metaphoric grace, droll wit, command of technical detail ... and sure sense of place.”— Washington Post “A master of fictional espionage.”— Daily Mail “Mr. Deighton is really something special.”— Sunday Times  “For sheer readability, he has no peer.”— Evening Standard  “I love him! So underrated now. The Berlin Game trilogy made lockdown possible.”—Olivia Laing “The authority of these books seems absolute.” — The Observer  on  SS-GB “Changed the shape of the espionage thriller ... there is an infectious energy about this book which makes it a joy to read.”— Daily Telegraph  on  The IPCRESS File “Mr. Deighton’s touch is unfailing… Never a false note.”— The New York Times Book Review  on  Spy Hook “Deighton is a master.” — Los Angeles Times Book Review  on  Spy Line “Cool, intricate plotting ... excitement and applied violence ... exactly how entertainment should be written.”  —Daily Mirror  on  Spy Story LEN DEIGHTON was born in London in 1929 and is considered one of the most important British espionage writers. He has written more than thirty books that range from historical fiction, dystopian alternative fiction, and brilliant nonfiction on the Second World War.