A NEW YORK TIMES BESTSELLER and NATIONAL BESTSELLERThe last novel from the incomparable John le Carré.Nat, a forty-seven-year-old veteran of Britain’s Secret Intelligence Service, thinks his years as an agent runner are over. He's back in London with his long-suffering wife, Prue, but MI6 has other plans. To tackle the growing threat from Moscow Centre, Nat is put in charge of The Haven, a defunct substation of London General with a rag-tag band of spies.      Nat's weekly ba