functioned as a sequel to both the novel and its television adaptation. References External links "We are the Family of Blood": episode trailer Fiction set in 1913 Fiction set in 1914 Fiction set in 2007 Doctor Who pseudohistorical serials Television episodes written by Paul Cornell Television shows based on British novels Tenth Doctor episodes 2007 British television episodes Television episodes about spirit possession Television episodes about telepathy Television episodes set in England Television episodes set in schools Television episodes set in the 1910s