The Doctor ( Auld Mortality ) In a parallel universe , the first incarnation of the Doctor pursued a career as an author before leaving Gallifrey with his granddaughter Susan . He had two great - grandchildren - a boy and a girl . Biography . After being ostracised by his family , the Doctor desired to escape from Gallifrey in an abandoned Type 40 TARDIS with Susan . However , he was delayed in this action when he was mentally conditioned by Quences to forget about it , as part of Quences ' plan to be set up as President of the Time Lords . Living in isolation with his robot servant Badger , the Doctor became an author of fiction , writing the first science fiction historical romance , " An Adventurer in Time and Space " with the Possibility Generator . His other works included " A Journey to Ice - Askar " , " The Winter Star " and " An Exciting Adventure with the Hassites " . His stories were popular with generations of Gallifreyan children . After several years , he was reunited with Susan , who was the President - elect . At the time , the Doctor was experiencing a simulation of Hannibal ' s crossing the Alps in the Possibility Generator . Together they discovered that " Auld Mortality " was using Badger to regularly hypnotise the Doctor , so he could be manipulated into the position of President . However , realising that Susan was about to become President , he attempted to control her instead . However , the Doctor used the Generator to release Hannibal and his horde on to the Panopticon , and destroyed Badger and defeated Quences . Upon returning the horde to the Generator , he discovered that he had been living in a TARDIS all along , and had been conditioned to forget it by Quences . ( AUDIO : " Auld Mortality " ) Although Susan remained on Gallifrey , the Doctor decided to become a renegade Time Lord and travel the universe . However , the Doctor used the Possibility Generator to create a facsimile of Susan who decided to travel with him . On their travels , they encountered Thaleks and Winston Churchill . ( AUDIO : " Auld Mortality " , " A Storm of Angels " ) This Doctor had no hesitation in interfering in established events and changing history : he travelled with and taught Leonardo da Vinci the technology of flight , rescued the princes in the Tower , crafted a hearing aid for Beethoven , and warned the Aztec s of Cortez ' approach . It was during one of these adventures that Susan began to suffer from radiation sickness . ( AUDIO : " A Storm of Angels " , PROSE : " The Innocents " ) After a while , the Time Lords ( led by the " real " President Susan ) began to pursue the Doctor across time to prevent his changing history . While in pursuit , the Doctor and Susan arrived on an Elizabethan spaceship led by John Dee , carrying alien crystals from the asteroid belt . They discovered that the crystals were sentient and were communicating with Dee , pretending to be angels . Their plan was to be presented to Queen Elizabeth I and take possession of her and the rest of Earth . However , after succeeding in stopping the crystals , the " real " Susan discovered the " fake " Susan , who offered her the chance to swap places and travel with her grandfather , while her facsimile could return to Gallifrey and die of the radiation sickness . Susan took this offer , and she and the Doctor left in the Type 40 to travel the universe together . ( AUDIO : " A Storm of Angels " )