Smith's A Journal of Impossible Things in the episode "Human Nature". The scribbled words by the drawing note that "it's always for money." A Fact File book about the Slitheen has also been released. In the Torchwood episode "Reset", a newspaper clipping of Blon posing as Margaret Blaine, previously seen in "Boom Town", can be seen as Martha Jones enters the Hub. The Doctor Who website features a segment called Captain Jack's Monster Files, narrated by John Barrowman, which provides information about alien species. An episode focusing on the Slitheen shows a family tree that refers to a number of related families, all with the suffix, -een, with the exception of the 'Absorbalovian Rebels', referring to the Absorbaloff from "Love & Monsters", from the twin planet of Clom. The Slitheen are mentioned in the audio book Wraith World, when Clyde Langer remarks he cannot understand why Luke and Rani would want to read about made up adventures, when they have faced Slitheen. Though the Slitheen do not appear in "The Time of the Doctor", the Doctor mentions them as among the forces gathered around Trenzalore. Doctor Who "Aliens of London" / "World War Three" (2005) "Boom Town" (2005) Cameos "The End of Time" (2010) "The Time of the Doctor" (2013, mentioned only) "Time Heist" (2014, photograph) The Sarah Jane Adventures Revenge of the Slitheen (2007) The Lost Boy (2007) The Gift (2009) Cameos The Nightmare Man (2010) Audios The Taste of Death by Helen Goldwyn (2018) Death on the Mile by Donald McLeary (2018) Sync by Lisa McMullin (2019) Novels The Monsters Inside by Stephen Cole The Slitheen Excursion by Simon Guerrier Revenge of the Slitheen (novelisation of TV story) by Rupert Laight Other appearances "Attack of the Graske" (2005) "From Raxacoricofallapatorius with Love" (2009) Wraith World (2010) Naming One of the factors that helped the Doctor determine the home planet of the Slitheen was the fact that they had a hyphenated surname. Examples include the names Blon Fel-Fotch Passameer-Day Slitheen, and Jocrassa Fel-Fotch Passameer-Day Slitheen. Additional hyphenated forms in Slitheen names suggest family sub-units within the broader Slitheen family. The Slitheen names mentioned in "Aliens of London" and "World War Three" are: Blon Fel Fotch Pasameer-Day Slitheen Sip Fel Fotch Pasameer-Day Slitheen Jocrassa Fel Fotch Pasameer-Day Slitheen In the book The Monsters Inside: Dram Fel Fotch Happen-Bar Slitheen Ecktosca Fel Fotch Happen-Bar Slitheen In The Sarah Jane Adventures story