The Good Companion ( comic story ) Summary . Part 1 . In New York City , Cleopatra Hunsicker is running through an alleyway , avoiding being shot by a man . Cleo sneaks up behind him and puts a gun to his head . She takes a device from him , telling him that his shimmer is leaking . She disables the shimmer , revealing the man to be a Graske . The Graske is then killed by a Time Sentinel as Cleo escapes . She scans the device to find out what it is . After the scan completes , Cleo is shocked and attempts to ring the Doctor . On Zhe ' s private moon , above Ouloumos , Zhe Ikiyuyu is speaking with Gabby Gonzalez , who is now her apprentice . The Doctor is attempting to repair Marcie while the binary apprentice offers them refreshments . The Doctor says that he won ' t be able to repair Marcie without a Xenobian matter - phase transmuter . Cindy persuades him to take a short trip in the TARDIS to get one . The Doctor and Cindy land on Mechma Onzlo III Station , and the Doctor asks Onzlo if he has anything to repair Marcie with . He then asks if Onzlo is okay , since he doesn ' t look alright . Onzlo explains that his wife Marteek has " changed " , saying she is an imposter . The Doctor goes to speak with her , telling Cindy and Onzlo to try look for a transmuter . The Doctor walks up to Marteek , who is standing on a round spacecraft . The Doctor tells her of Onzlo ' s suspicions , and asks to scan her just to reassure him . Marteek walks into the craft , and tells the Doctor that Onzlo ' s suspicions were correct , before closing the door . The Doctor runs away as the craft lifts off the ground and chases them , making a sound similar to the TARDIS . Cindy and the Doctor escape in the TARDIS , and Cindy asks him what the craft was . The Doctor guesses it was a chameleon device or a time engine , saying that Marcie tried to tell him about it the last time he was on the station , but he dismissed it . As they track Marteek through the Time Vortex , Cindy tells him she got the transmuter he wanted . On Aramuko , Noobis is walking with Siffhoni . He tells her that he sent a telepathic message to the Doctor , and that he ' d come to Aramuko once he receives it . Despite this , Siffhoni continues to believe that the Doctor , Gabby and Cindy are figments of his imagination . Back on Zhe ' s moon , Zhe ends that day ' s training lesson with Gabby . Gabby walks away and asks the female apprentice whether she had seen the Doctor or Cindy . The apprentice tells her that they had left in the TARDIS , shocking Gabby . She almost loses control of her powers , but Zhe helps her bring them under control . Gabby and Zhe talk for a while , before Gabby leaves while Zhe waits behind to order food . In the Vortex , the Doctor receives a signal from Cleo . She asks him to come and check the details of the artifact she found , but the Doctor doesn ' t want to lose Marteek . Eventually he reluctantly agrees , and goes to meet with Cleo . He inspects the artifact , and comes to the same conclusion as Cleo . Cindy asks what the matter is , and the Doctor and Cleo explains that the artifact contains information that Earth will cease to exist within a matter of days . Cindy says that they had seen a future where the Earth survived , but the Doctor explains that the future had been changed and that Earth was going to die . On Zhe ' s moon , Gabby is walking alone , talking to herself . She hears a voice , and turns around to see Cindy and the Doctor standing there . They tell her to go with them . Zhe goes to find Gabby , and sees what appears to be the TARDIS . She hears Gabby yelling , and turns to see her being restrained by two Time Sentinel s , no longer in their disguises . Zhe dodges an attack from the Sentinels . Gabby tries to tell her to warn the Doctor as she is pulled into the " TARDIS " , which flies into the sky , revealing itself as the Red TARDIS . Part 2 . " to be added " Part 3 . " to be added " Part 4 . " to be added " Notes . " to be added " External links . " to be added "