Bond’s infiltration of Goldfinger’s HQ is a masterclass in stealth and patience.  He tails Goldfinger in the day and lies in wait until darkness sets over Goldfinger’s headquarters.  Only then, under the cover of night and moving in the shadows, does Bond get a closer look at Goldfinger’s operation and overhears the crucial words “Operation Grand Slam.”  Nothing says “secret agent” like moonlight espionage!