So Frodo goes into this pub.

Seated at a bar is a dark, hooded figure looking strangely insunstantial in the half light.

Frodo sits down next to the figure and remarks: "Um... you're a ring wraith aren't you" "Why yes" replies the creature with a voice like the rustling of a shroud. "Can I buy you a drink?" asks the hobbit. "Fine by me" replies the phantom.

The drink arrives and they sit in silence for a bit.

Then Frodo plucks up the courage to ask the question he has had on his mind since he came in....

"So" he says

"So .... what's a Nazgul like you doing in a place like this?"