Then at about half past eight somebody came and did the monitoring again.

Then they did it a third time, and a woman went out of the room without saying anything, and Kevin and I looked at each other, and the air in that room changed in a way I cannot describe except to say that I have been in rooms where that has happened twice since and I knew it immediately both times.

Twenty minutes of nothing.

I know, from the notes I later obtained, that in those twenty minutes there were two telephone calls and a consultant was asked to come down from another floor, and that what they were looking at was a trace they did not like and a presentation that had changed since the Monday.