First Born ( short story ) First Born was the tenth short story in the Short Trips anthology " " . It was written by Lizzie Hopley . It featured the Fifth Doctor , Adric , Nyssa and Tegan Jovanka . Summary . The TARDIS has arrived on 1950s Earth , and the Doctor can ' t figure out why . Strange equations appear on the console , and Adric is fascinated by them . Tegan , bored , leaves the TARDIS to explore . She finds herself in a maternity ward . Something is trying to take over the TARDIS , but when the Doctor tries to stop it , Adric knocks him away . Nyssa loses consciousness because of the presence in her mind . Adric , controlled by the entity , leaves the TARDIS . Tegan comes across a man who at first mistakes her for one of the staff . He tells her he ' s afraid there is something wrong with his new son . She sits with him and talks to him , telling him about Australia . Adric / the entity controls the ward sister , Kathleen Cannon , and gets her to take him to one of the rooms , from where he takes one of the babies and returns to the TARDIS . When the Doctor comes to , Adric is standing at the console , working the controls . He sees that they have left Earth , but before he can do anything , he hears a baby ' s cry . When he finds the baby , he can feel some kind of entity trying to enter his brain . He brings the baby back to the control room , and when Adric is distracted by a sound from Nyssa , the Doctor uses the distraction to knock Adric out . He hands the baby to a now conscious Nyssa . They look at the equations that Adric has entered , and they realise that the entity is an advanced computer program . It is trying to find a home in the child . However , the child begins to have trouble breathing . Meanwhile Tegan has been able to get the man with her to smile . However , he also tells her that his son might be brain damaged . And when he tells her his son ' s name is John , he uses the past tense and becomes angry at himself . The Doctor deduce s that the entity wants to make its own family . They need to get the mother programme out of Adric and the child program out of the baby . The Doctor and Nyssa leave the programme on Otho , far from any intelligent life . They return to the TARDIS and wake up Adric . Tegan and the man part company , but when she returns to the TARDIS ' last location , it is gone . Kathleen Cannon discovers that the baby is missing and remembers the boy who came in earlier . She panics . Adric claims he can ' t remember what happened . When they arrive at the hospital , they look through several doors before they find the one in which Adric thinks the baby belongs . When they get back to the TARDIS , Tegan is waiting angrily for them . Nyssa questions Adric about whether he got the right mother , and he says the name was something like " Nailer " or " Grayson " . Tegan makes the connection and says the name is " Grainger " . Kathleen Cannon , expecting to be in trouble with the ward specialist , Mr Holland , tries to explain why the baby is missing , but he shows her the baby is not only safe and sound , but any signs of brain damage are gone . His parents , Edward and Eleanor Grainger , say his name is John .