Anne Travers Anne Travers was the daughter , and second child , of Margaret Travers and Professor Edward Travers , and the scientific advisor to the British Army ' s fight against the Great Intelligence and its Robot Yeti in the London Underground . Anne was born on 28 October 1937 , eighteen months after her brother , Alun Travers . Her mother died in 1943 . ( PROSE : " Night of the Intelligence " ) She took after her mother ' s side of the family in appearance , but took after her father in personality . ( PROSE : " One Cold Step " ) Professor Rachel Jensen was one of her lecturer s at the University of Cambridge . Her classmates included Allison Williams and Ruth Ingram . ( PROSE : " The Scales of Injustice " ) Anne and her father helped the Second Doctor defeat the malevolent entity . ( TV : " The Web of Fear " ) But in an alternative timeline where the Doctor was shot by Colonel Pemberton , Anne ' s mind was subsumed by the Intelligence and her body used as its host . ( PROSE : " Legacies " ) After the London Event , she was retained by the British Army and sequestered to a secret vault in Northumberland to help develop new defensive weapons based on the remains of the Great Intelligence ' s technologies . She devised two machines , one based on the device she developed with the Doctor previously , which interrupted the Great Intelligence ' s control of Yeti . Another device , labelled a " web destructor " by Major Douglas , was able to evaporate the Great Intelligence ' s web . Both devices were used in the Cornish village of Bledoe . ( PROSE : " The Forgotten Son " ) She became highly suspicious of the Vault and its true agenda , and as acting as a spy inside it for General Oliver Hamilton . ( PROSE : " Beast of Fang Rock " ) After a Vault Citadel had been captured , she was taken out to work for the Home - Army Fifth Operational Corps and quickly grew frustrated that without a proper lab during the move to Dolerite Base , she had nothing to do for weeks . She went out to investigate BLIMEY with Samson Ware mainly out of boredom . ( PROSE : " Moon Blink " , " The Showstoppers " ) During this time she maintained contact with William Bishop , and eventually realised the depth of her feeling for him . Upon the advice of her friend , Ruth McGrath , Anne finally asked Bishop out on a date , and they officially became an ' item ' . ( PROSE : " Moon Blink " , " The Lost Skin " , " Mind of Stone " , " Night of the Intelligence " , " The Daughters of Earth " , " The Dreamer ' s Lament " ) Tragedy struck in January 1970 , when her father ' s mind was consumed by the Great Intelligence . He was ' saved ' by Thonmi Rinpoche , and Anne was able to say goodbye to him on the astral plane . However , it took her a few months to find a way to deal with the loss , and it wasn ' t until March that she felt able to finally tell her brother , and their family , about Edward ' s death . They held a funeral service for him on Wednesday 25th March . ( PROSE : " Night of the Intelligence " , " The Dreamer ' s Lament " ) She built a healthy friendship with Sally Wright , and was there to support her following the end of Sally ' s relationship with Lethbridge - Stewart . ( PROSE : " The Dreamer ' s Lament " ) Three years later , Anne and her father visited the United States for a year , letting out his home in London to Professor Watkins and his niece Isobel . ( TV : " The Invasion " ) Part of the reason for the trip was the help establish the scientific arm of the US side of UNIT , working alongside Major Adrienne Kramer . ( PROSE : " Night of the Intelligence " ) Anne and Bishop were married by New Year 1990 , and had a son , Samuel . ( PROSE : " The Enfolded Time " , " The Two Brigadiers " ) She succeeded Jensen as chief scientific advisor to the Cabinet in 1981 , serving in that position for eighteen years . On 31 December 1999 , Dame Anne Travers OBE , believing that Ashley Chapel was planning to summon the Great Intelligence , attempted to stop him , accidentally causing London to transform into a mystical realm in which she was the " Hierophant Anastasia " . She later sacrificed herself to restore London to normal . ( PROSE : " Millennial Rites " )