In the centre of Bond was a hurricane-room, the kind of citadel found in old-fashioned houses in the tropics. These rooms are small, strongly built cells in the heart of the house, in the middle of the ground floor and sometimes dug down into its foundations. To this cell the owner and his family retire if the storm threatens to destroy the house, and they stay there until the danger is past. Bond went to his hurricane room only when the situation was beyond his control and no other possible action could be taken.
―Ian Fleming, From Russia With Love