What's he doing in a Royal Palace?

A very special experience at Brighton's Royal Pavilion tonight. We went to a carol concert in the music room, a place so exquisite it quickly gives you a crick in your neck craning to see all the wonderful dragons on the ceiling and serpents climbing up the walls. In the interval we went into the banqueting hall, another stunning room, and had mince pies and mulled wine. And guess who we bumped into?