LONDON - DECEMBER 17: Author Philip Pullman unveils his 'Find Your Daemon' Christmas trail and exhibition at London Zoo on December 17, 2004 in London. Dana, the cheeky black and white lemur, is perched on Pullman's shoulder. The exhibition is based on "His Dark Materials" trilogy of books, helps visitors to the zoo find their own daemon. (Photo by MJ Kim/Getty Images)
