Whatever Happened to Iris Wildthyme?

Iris is living the life she always dreamt of, swanning from one party to the next. From the swinging Sixties to the roaring Twenties to Freddie Mercury's 40th birthday bash via Ancient Rome, Iris has become the ultimate party girl. What more could she want? But who are those sinister ticking figures hiding in the mist? Why are partygoers snapping out of existence? And who is this Panda she keeps talking about?