Upstairs and downstairs, and in thy nightly chambers...
Still haven't finished Thief 3, but getting close now, judging from what just happened in the plot. I'm right after Robbing the Cradle, after having gone back to the Keepers and found out that [insert appropriate spoiler here - if you've played you know, if you haven't I'm not about to spoil it for you].
Even if I haven't finished the game, I replayed RtC last night, just to see if the utter scariness and creepiness of that mission held even with me knowing all that happened, how to neutralize the enemies, where everything was, etc. And well, it did. Fuck that place is creepy. *shudders* Definitely worthy of being shelved with the other RtC (Return to the Cathedral, in Thief 1). The game is worth its price even just for this mission alone.
Now to go visit [Mrs. Spoiler]'s lair... sheesh, Keepers. All high-and-mighty but when they're in trouble they always have to rely on the lowly thief to help them out. :P