The Time Machine ( audio story ) The Time Machine was the eleventh and final release of the " Destiny of the Doctor " audio series , produced by Big Finish Productions for AudioGO . Publisher ' s summary . 23 November 2013 . In an Oxford laboratory , graduate Alice Watson helps Professor Chivers assemble the final pieces of an impossible machine . A time machine . The scientist and his assistant believe they are making history , little suspecting that the project ' s completion will threaten the existence of the entire universe . But someone has sensed the danger , and when the mysterious Doctor arrives , Alice is taken on a desperate race from libraries and dreaming spires all the way to the nightmare world of Earth ' s future . The monstrous Creevix are coming . They seek control of time itself and are certain that the Doctor is already too late to stop them . But can the key to saving the future lie in the Time Lord ' s past lives ? Plot . November 23 , 2013 : Alice Watson is late for an appointment at Oxford . In her rush , she bumps into a young man in a bowtie , who is texting someone . In a nearby lab , Professor Cedric Chivers is at work on his device while he waits for Alice ; on his desk sits a smoky , glassy cube — a Time Lord hypercube , though he doesn ' t know it . The cube has given him , and continues to give , instructions for the construction of the machine — and the voice it uses is Chivers ' own . As Alice arrives , she meets the man in the bowtie again , who introduces himself as the Doctor . She thinks he is from Cambridge ( or possibly Yale or Osaka ) , and he plays along , claiming to be from St . Cedd ' s , class of 1980 . She accompanies him to meet Chivers , and see his machine . . . his time machine . The Doctor asserts that the machine should not exist . He notes the hypercube , which Alice describes as a communication device . He warns her that the machine is impossible , and should scare her . Chivers joins them ; the Doctor says he is here to dismantle the time machine . The Doctor confronts Chivers about his lack of real understanding of how the machine works ; Chivers claims he trusts the instructions because they are coming from himself in the future . The Doctor inquires about the hypercube , calling it by name ; Chivers says it arrived with the first parts of the machine . Chivers admits the cube represents a time loop , and says he intends to dismantle it himself — once he uses it to send the instructions and parts back to himself . Alice insists it can be duplicated repeatedly as long as every user does the same as Chivers . The Doctor takes the cube , and in response , something begins to materialise . A large , insectoid creature appears by the machine ; Alice sees it , but Chivers cannot , because he is inside the causal loop . The creature and its people are the Creevix ; the Doctor does not know them , but the creature claims the Doctor cannot stop them , because they are " already here " . Five more join the first . Suddenly the creatures vanish . The Doctor says he sensed something wrong , which drew him here . He invites Alice to come with him . The Creevix reappear behind Chivers , who still can ' t see them ; the Doctor tells Alice to run . Outside , they see more Creevix mixed among the humans in the area . In a nearby library , they descend to the basement , where the creatures continue to hunt them . Back in the lab , Chivers unwraps the final component of the machine — the Time Core — and its schematics . He starts to install it . In the Library , the Doctor leads Alice to the TARDIS ; despite her lack of knowledge of fiction , she has a suitably impressed reaction to the ship ' s larger interior . He tells her it is a real time machine , more so than the one in the lab . He begins trying to track the source of the hypercube ' s messages — but the cube vanishes . He takes the TARDIS to track it . Chivers finishes installing the Time Core . He prepares to enter the machine — but one of the Creevix manifests itself to him , forcing him to admit the Doctor and Alice were right . The Creevix tells him one word : " Wait . " The TARDIS gets stuck in the vortex , somehow — something is choking off passage , allowing them to travel only twenty years forward or backward of their starting point . They materialise back in Oxford , in the future , as the cloister bell sounds . In this future , the Creevix have overrun everything , and are visible everywhere . Copies of the time machine are all over the place , and more appear as they watch — the many copies are what has jammed the vortex . Each machine discharges another Creevix . They say they will consume the universe , as it is fractured , which is what allowed them to enter from their own universe . In that universe , they claim to be the masters of Time , and they are aware of the Time Lords . One Creevix takes a strand of Alice ' s hair ; the Doctor says that it is absorbing her potential time , her future . It says that if it did the same to the Doctor , and killed him , the future becomes unclear . The Doctor uses his sonic screwdriver to disorient the creatures , inflaming their sense of time . The Creevix block access to the TARDIS , but the Doctor and Alice take one of the other time machines . Elsewhere — and elsewhen — a man named Guy Taylor is in a time machine of his own . He works for the Time Agency , and is about to embark on his first mission , to resolve an anomaly in the 20th century . He takes a moment to reflect on his parents , who were early explorers . In the glove box of Doctor and Alice ' s machine , they find a photo of a couple , whom the Doctor finds familiar . Alice discusses her own past and her obsession with science and facts , and her father ' s disappointment in her . The Doctor finds Guy Taylor ' s Time Agency ID card , and concludes the couple are Taylor ' s parents . The machine represents a paradox , but the paradox had to start somewhere — in Taylor ' s time . Also in the glovebox is a copy of the hypercube . The Doctor and Alice send the machine back to its point of origin — Guy ' s future . In Guy ' s machine , something is wrong . He sees Alice ' s reflection in the canopy , with Creevix outside — and then he ceases to exist . In the other machine , Alice sees Guy , and sees him vanish . A Creevix pulls them from the machine , and they see a devastated world covered in Creevix . It tells them it is the end of their universe . The Creevix demonstrates that it can anticipate their every thought and word . It tells them that they come from another universe , and that they were able to come through because the Doctor ' s TARDIS struck Guy ' s capsule in the vortex , creating a crack in the universe . This pushed Guy ' s capsule into the Creevix universe , allowing them to force their way back through — and formulate this plan . Now they have devoured all life in the universe ; and they have manipulated the Doctor to that moment in order to retroactively set the plan into motion . They entrap the Doctor , rendering him immobile to witness the death of his universe . They also seal off the TARDIS . They give Alice the hypercube and send her back to deliver it to Chivers , just a few minutes or hours into his future , where he will start the loop by sending it back in time with the capsule and instructions . She is forced to go . Once she arrives , she gives the cube to Chivers , and three Creevix are present as well . However , they are interrupted by the Doctor ! He gives a lengthy - but - rapid rundown of his plan and how he has outwitted the Creevix . In the middle of it , the TARDIS is heard ; the Doctor says it was breaking free of the Creevix ' s trap in the future , materialising around his frozen form , and transporting him to just minutes before this confrontation . Hidden in the room are a psychokinetic manipulator , and the chunk of therocite ; the Doctor uses the manipulator to hurl the therocite at a structural weak point in the capsule , destroying it . This breaks the temporal loop , creating a void which sucks in all the wreckage of the capsule , the Creevix , and — finally — the hypercube , blasting them back to the Creevix ' s home universe . In the future , the hordes of Creevix will never exist , as that timeline now ceases to exist . At the last moment , another capsule materialises — and Guy Taylor steps out . For him , it ' s only been a moment since he left his own time ; he is quite surprised to find a welcoming party . He witnesses as the Doctor reintroduces himself to Professor Chivers , or Cedric , as Susan once knew him — and reflects on how Chivers ' life has changed . In the end , Alice is offered a chance to travel with the Doctor ; but she declines . She asks , instead , to travel with Taylor , who grants her request .