224 • GROVE PARK
To what extent Greene was influenced by his long friendship with
Philby is hard to determine, but their relationship survived the trai-
tor’sdefectionto Moscow in January 1963. Greene’s decision to
contribute an uncritical foreword to Philby’s memoirs,My Silent
War, enraged his former colleagues in SIS, who suspected that he had
played a significant role in delivering the manuscript to the offices of
Philby’s literary agents in Paris, and MI5molehunters hinted darkly
about Greene’s dubious loyalty. The attitude of Greene himself
toward SIS veered from the ridicule ofOur Man in Havana—which
he introduced with a foreword claiming that he had committed no
breach of theOfficial Secrets Act, an opinion not shared by some
senior but humorless MI5 officers—to the baseless accusation inThe
Human Factorthat SIS indulged in murder.
Greene died at his home in Antibes in April 1991. One of the last
of his books published before his death was a long-forgotten novel,
The Tenth Man, which he had written for a movie studio in Holly-
wood after the war. Discovered by publisher Anthony Blond, it also
contained a treatment for a film that was never made.GROVE PARK.In 1923 a secret intercept station was established by
theMetropolitan Policeat 113 Grove Park, Camberwell (also re-
ferred to as Denmark Hill), to monitorCominternwireless signals
broadcast from an illicitCommunist Party of Great Britaintrans-
mitter located in Wimbledon. Headed by CommanderHarold Ken-
worthyof Marconi and assisted by L. H. Lambert, the station began
to read some of the traffic in 1932. The messages decrypted byGov-
ernment Code and Cipher Schoolwere codenamedmask. Grove
Park remained in operation as a classified site until long after World
War II, when it was returned to the Metropolitan Police.
GRU.The Soviet military intelligence service Glavnoye Razvedyvatel-
noe Upravlenie (GRU) has operated an independentrezidenturain
London under diplomatic cover since 1935 and has been a principal
adversary and target of British Intelligence. No GRUdefectorhas
deserted in London, and the organization has suffered comparatively
little hostile penetration compared to theKGBand the SVR (Sluzhba
Vneshnei Razvedki, the current Russian foreign intelligence service).
In 1940, when theNKVDsuspected incorrectly that its Londonrezi-