More grilling, stern glances and photo-taking - all we need is the serial number below our furtive-looking mugshots - then the tension lifts. We're in! And we're members! For the night only, perhaps, but from here on in, it doesn't get much swankier. Suddenly everyone in this over-gilded, sumptuously appointed townhouse is lovely to us, even though we quite clearly don't belong. I'm guessing they don't often host a pair of unaccompanied women with nothing more on their minds than dinner.