Room 3603 Author:H. Montgomery Hyde This fascinating story of World War II espionage begins in Manhattan at 630 Fifth Avenue, Room 3603. The organization known as the British Security Coordination, was the keystone of the successful Anglo-American partnership in the field of secret intelligence. The man chosen to direct this effort was Sir William Stephenson, who put all his paper... more »s at the disposal of author H. Montgomery Hyde. The result is "Room 3603", a unique picture of the British Secret Service in action.« less