I am wearing a tatty medieval knight's costume and I should be onstage now with my group tapdancing to a routine I don't know. Quite frankly they are better off without me. Instead I am holding two saws and sliding down through marble arches and pillars into a vaulted hall where some kind of masonic ritual is about to take place. Below me I see a shining ghost of a knight. "Are you ready?" a voice asks and the doors open. A choir appears and the room fills with dignitaries. No-one seems to mind my presence despite my wild chaotic dancing.