(cameo; the Doctor meets some of Sabbath's agents) History 101 by Mags L Halliday Camera Obscura by Lloyd Rose Time Zero by Justin Richards The Infinity Race by Simon Messingham The Domino Effect by David Bishop (alternate version of the Sabbath encountered previously) The Last Resort by Paul Leonard Timeless by Stephen Cole Emotional Chemistry by Simon A. Forward Sometime Never... by Justin Richards (essentially 'dies' to save the Doctor) Faction Paradox The Book of the War Sabbath Dei and In the Year of the Cat (2-part audio drama) Movers and A Labyrinth of Histories (2-part audio drama) Sabbath and the King (audio drama) References I, Who 3, Lars Pearson, Mad Norwegian Press, 2003 Literary characters introduced in 2001 Doctor Who book characters Faction Paradox Male characters in literature Fictional people from the 18th-century