Utter pandemonium at St Pancras this evening.

Happily my train semed to be about the only one leaving from the correct platform at the correct gtime. Handy given that my ticket was valid for that train only.
I was able to discover that this Agatha Christie set is in fact Searcy's Champagne Lounge where the only item on the menu is Champagne. Presumably the clientelle are an odd mixture of the preposterously ostentatious with a handful of post-modern irony students thrown in.