http://www.bbc.co.uk/doctorwho Doctor Who playlist: http://www.youtube.com/view_play_list?p=94467CE2AC304A73 Saturday 31st May, BBC One. One hundred years ago, the universe's greatest Library was sealed off, leaving only one warning: "Count the shadows". But now, the shadows are moving again. The Doctor and Donna must uncover the terrible truth behind the Nodes and the horrifying Data Ghost, to find the Library's secret. Author: BBC Keywords: bbc doctor who series4 david tennant catherine tate donna billie piper rose shadows silence library nodes data ghost Added: May 17, 2008
