Eldrad Must Die ! ( audio story ) Eldrad Must Die ! was the first story in the 2013 Fifth Doctor audio trilogy . A sequel to the 1976 " Doctor Who " television story " The Hand of Fear " , it allowed Stephen Thorne to reprise his role of Eldrad and used many elements from that serial . Publisher ' s summary . " A Doctor , curse his name , threw me down among the dead . . . but I endure . I am Eldrad . . . and I must live ! " A nuclear icebreaker , foundering in Arctic waters . Seabirds washed up in the fishing resort of Ambermouth , their wings encrusted with crystal s . A shining artefact of uncertain provenance , up for sale on an auction site . All of these things are linked , as the Doctor , Nyssa , Tegan and Turlough are about to discover . Linked to the rebirth of a genocidal tyrant , presumed dead many years ago . . . For the sake of the planets Earth and Kastria alike . . . Eldrad must die ! Plot . Part one . Aboard icebreaker " Alexander " , the crew are evacuating . Charlie Gibbs has accessed the nuclear reactor , with some persuasion he emerges declaring that " Eldrad must die " . Kate Sherrin is about to head home when she spots a bevvy of people on the shore of Ambermouth harbour — it is the Fifth Doctor , Tegan Jovanka , Nyssa and Vislor Turlough . The latter two go to look at rock pool s while the Doctor and Tegan paddle . The Australia n cuts her foot while doing so . Kate comes over and asks the Doctor and Tegan to leave the beach . When she sees the wound , she offers first aid . Turlough and Nyssa find a gannet , dead and covered in silicon quartz . Kate asks that they forget seeing it and secretes it in her car . The Doctor and his companions go to the Pescadorian for a drink and some food . There , Turlough meets Gibbs , an old friend of his from Brendon Public School , who finds his friends failure to age remarkable . When he leaves , Turlough is quick to claim they were never friends . Gibbs is in contact with someone , who he tells he has secured the Watcher and that Turlough will carry it for them , owing him a favour . In the bar , the Doctor approaches Bob Gell , to enquire about hiring a boat . He learns that all the fish have died , followed by the bird — gulls , gannets and puffin s . Outside , Turlough meets Gibbs again , who claims he is from Trion . He tells Turlough a job is required of him and then attacks him . Turlough hears a voice saying his name , and when regains his senses is with the Doctor . Nyssa finds quartz growing inside her drink . Together with Nyssa and Tegan , they head to the Ambermouth Seacology Centre , where Kate works . Jim and Kate are working when the Doctor arrives . Nyssa , Tegan and Turlough discover a beluga whale - called Skipper by Kate . It has quartz growing out of it and is being given morphine . Turlough runs away , still hearing voices in his head . Tegan follows him . He finds Gibbs outside . Suddenly the quartz in his watch starts " biting into [ him ] " . Turlough dreams that he is at school , being told that the watch is part of his " new employer ' s manifestation " . He is told not to fight it and , coming to , declares " Eldrad must die " . Part two . Turlough leaves with Gibbs in his car . Tegan tricks Jim , taking the keys to his jeep as she does so . Nyssa gets in the water with Skipper , claiming the whale is trying to speak . It does so , saying " Eldrad must die " . Skipper then dies . Gibbs is talking to Turlough about school as they drive . He can only reply " Eldrad must die " . Turlough is still dreaming about being at school . He meets a teacher who looks like Tegan who tells him to fetch the Watcher . In the Seacology Centre , Kate admits that uranium used to be dumped on the island in the harbour and radiation levels have increased of late . Tegan finds Turlough while he is alone , Gibbs having gone away a moment . She notices that the quartz has spread across his whole hand . He is still dreaming about fetching " dealer " and the Watcher . Turlough ' s eye s glow and Tegan is incapacitated . Heading for the island , Nyssa explains to Kate that Kastrian s have their " genetic matrix set in stone " allowing them to regenerate from a " tiny fragment " , like a lizard . Jim , who is getting the dinghy ready for them to cross , asks Gell for assistance , but then notices his face is covered in crystals . Gell says that the sea will rise and " he will be here " , " you will need your armour on " . With this , he attacks Jim . The Doctor and Kate find that several other villagers have their faces covered in crystal — as does Jim . They run back to the Doctor ' s TARDIS . Turlough and Gibs meet with Rocco , who invites them into his car to complete the deal . Exiting his TARDIS , the Doctor presents an inflatable dinghy . Suddenly , the beach moves and forms a whirlpool . It swallows the TARDIS . The Doctor , Nyssa and Kate get into the dinghy . Gibbs pays the money to Rocco and Turlough takes the Watcher — an eye of quartz . Rocco says it has a blue glow sometimes . The voice in Turlough ' s head warns him not to look at the glow and to bring it to her so that Eldrad can die . However , having gazed upon it , Gibbs decides he has been wrong — Eldrad must live . Turlough runs as Gibbs attempts to take the Watcher from him . He finds Tegan , whom he calls " dealer " , and the two drive off . In the dinghy , Kate notes that the water is crystallising . It becomes solid and the boat becomes still . The Doctor calls out to Eldrad asking him to converse . The solidified sea splits open and a " quartzberg " , as the Doctor labels it , emerges from the ground , a hundred feet tall by the Time Lord ' s estimate . The Doctor inspects it and believes there is something within . Captain O ' Brien calls out . His ship , the " Alexander " is within the quartzberg . The captain and crew have their faces covered in crystal . The Doctor , Nyssa and Kate go aboard . An interstellar shuttle is onboard the craft . A woman steps out and tells the Doctor , " Eldrad must die , and so must his slaves " , with which she attacks him . Part three . The woman releases the Doctor , finding him immune to Kastrian mind control . She declares herself to be Mulkris , a Kastrian executioner . Tegan is driving Turlough back to the Doctor . The crystal is up to his neck now . He is still hearing the voice , that of Mulkris , ordering him to bring the Watcher to her . Gibbs catches up with them and rams them off the road . Mulkris tells the Doctor that King Rokon had her search thousands of worlds for remnants of Eldrad , leading her to Earth . She says her agents are bringing in the part — an eye . Emerging from the wreckage of the jeep , Tegan offers Gibbs the eye . It leaps and impants itself in his forehead . He then leaves . Feeling the eye upon her , Mulkris suffers what the Doctor calls a psychic seizure . While she is unconscious , the Doctor , Nyssa and Kate explore her shuttle . They find a set of fossilised remains laid out in the silhouette of a man . It is labelled with the description " here , held in a stasis field , lie the gathered mortal silicon remains of Eldrad , architect and destroyer of Kastria " . There are parts missing . With a road block ahead , Tegan and Turlough abandon their jeep and continue on foot . Mulkris has awoken and the Doctor lectures her on the dangers of collecting the fragments given that , with a dose of radioactivity , any part could become a whole Eldrad . The fragments begin to move and the Doctor tells Mulkris she is being used . He explains that Eldrad is all around them and that he has lured Mulkris to the island where the remains have access to radiation . Mulkris refuses to destroy the remains until all have been given , per Rokon ' s orders . She does not believe the Doctor ' s claim that Kastria is a dead world . Gibbs boards the ship and attacks Mulkris declaring that " Eldrad ' s rebirth begins " . Meanwhile , Nyssa and Kate begin to fall under the Kastrian ' s influence . Gibbs orders that the ship be readied for the restoration of Eldrad . The Doctor tells him the icebreaker lacks the necessary radiation output , but as he explains this , his TARDIS rises from the crystallised sea and Gibbs tells him it will serve as the power source . Nyssa is trying to open the door to Eldrad ' s remains using a lattice key . The code she calculates is corrected by the voice of Eldrad in her mind and is accepted . Tegan and Turlough arrive aboard the ship and hear the Doctor being tortured by Gibbs into opening the TARDIS . His obstinacy sees Gibbs resort to using controlled sand to get inside the lock and open the ship . Distracting him with a fire alarm , Turlough and Tegan assist the Doctor to escape . Mulkris is trying to contact Kastria . Nyssa and Kate approach her and ask her listen to Eldrad . The Doctor also arrives and confirms again that Kastria is death and asks her to destroy the fragments . Gibbs enters and says that Eldrad will build a new Kastria in his own image . Mulkris threatens him with a dart of the acid Eldrad created . However , he turns it on her and , dying , she asks the Doctor to complete her mission and tells Eldrad he is alone . Mulkris bequeaths her genetic ring to the Doctor . He uses it to vaporise the remains in stasis , but the eye still exists . Nyssa and Kate recover their senses . Gibbs declares that the crystals will soon cover the Earth and the planet will become Eldrad . Part four . The Doctor contradicts him , telling him the crystals that are covering the surface are a mindless mutation . The contamination on Turlough is spreading but , with Mulkris gone , his mind is clearer . The Doctor tells Gibbs that Eldrad must be regenerated and offers to help . Tegan and Turlough join them both in the TARDIS , leaving Kate and Nyssa behind . The Doctor puts his ship in a " holding pattern " so Nyssa will be there when he returns , while allowing him to work on restoring Eldrad without interruption . While the Doctor and Gibbs go to TARDIS power house , Tegan and Turlough check the flight co - ordinates , which show that the ship is in no holding pattern , they are headed somewhere . Gibbs tells the Doctor that he will require no radiation suit to enter the core , not expecting to survive . The Doctor asks what Eldrad intends for the Earth and he replies that he will armour the people of Earth , making them fighters for his galactic conquest . The Earth , too , will be armoured and be the centre of Eldrad ' s " imperial army " . Meanwhile , Captain O ' Brien is preparing missile , taken from the planes that crashed in the harbour , that will seed the world for Eldrad , now under his control after seeing the eye . Tegan reveals to Turlough that she too has crystals growing on her . The Doctor knocks Gibbs unconscious with a spanner and attempts to pull the eye from his head . He hears Eldrad ' s voice in his head . The Doctor tells him he will no suffer his restoration . Gibbs wakes up locked inside a boiler room . Turlough tells the Doctor about Tegan ' s infection and he tells him he has crystals on his own body . Meanwhile , Nyssa theorises that the crystals have grown too fast . They have used up all the radiation and will soon collapse in on themselves . Kate reveals she is infected too as quartz begins to fall from the sky . The Doctor searches for Eldrad ' s ring , unable to remember what he did with it . Knowing that Eldrad could use it for his own ends , he tells Tegan and Turlough they must head for Kastria . On the desolate planet , Eldrad hears the sound of the TARDIS landing and laughs at the idea of company after so long . In the TARDIS , Gibbs warns Turlough that the crystal armours mind , as well as body , so he will soon follow orders . This takes effect and Turlough releases Gibbs . From him , Gibbs , and therefore Eldrad , learn that the ring is on Kastria . Looking through the thermal chamber s , the underground Kastrian city , the Doctor , Gibbs and party find a statue of Eldrad , twice life size . Pondering how it got there , Gibbs orders Turlough to fetch the ring from its hand . The statue speaks , enquiring as to who disturbs it , and the Doctor realises Eldrad survived . One the sea , the " Alexander " is sinking as the crystals collapse . Nyssa advises that the captain and remaining crew flee in Mulkris ' ship . The statue recounts how a Doctor threw him down among the dead and he climbed his way back out of the depths . He inscribed the lettering that appears on his chest , identifying him , himself . Eldrad talks to the dust , calling them the dead , it being the remains of the Kastrian species . The Doctor and his companions question his sanity . Gibbs has Turlough hand him the ring he took and tells Eldrad that he is too old to rule and that he , the new Eldrad , " has the power now " . The silicon remains of the dead begin to move , taping into the power of the TARDIS and channelling it to Gibbs . In Mulkris ' s ship , Nyssa uses the hand of the dead Kastrian to power the ship and tells O ' Brien to get his crew aboard . The eye absorbs the radiation and creates an Eldrad in the image of Gibbs , who declares that Earth will be the centre of his empire , telling the old Eldrad that he can have Kastria , which he labels a " tomb " . Then , the dead Kastrians begin to revive , also taping into the TARDIS ' s power . The new Eldrad is confused having not ordered this , but the old says his friends have awoken and that they will serve him . With a dart of his poison , he strikes down the new . The acid seeps through his body and he tells Turlough to follow the order he was given and then dies . On Mulkris ' sjip , in flight , the passengers notice that the crystals are diminishing on their bodies . Back in the caves underground , Eldrad realises the Doctor ' s identity and talks of his dreams of crushing him . He attacks the Doctor and his companions but is interrupted by Mulkris who has been restored due to her ring being in the TARDIS and taping into its power . Mulkris tells Turlough to destroy Eldrad ' s ring with the crytals on his arm , which can function as a weapon . He is still dreaming , imagining himself to be a Trion pilot . Together with Tegan , who too has such a weapon , he destroy ' s the ring . Mulkris uses the dart that killed the new Eldrad against the old and he is killed . In his mind , Turlough is told that his contract is fulfilled . His dream sees him hear the he has completed his mission over the communications of his spacecraft . The Doctor expresses that he still needs to collect Nyssa . She is with O ' Brien who says the " Alexander " will be subject to salvage . As she expects to stay , the TARDIS lands and the Doctor asks after her well - being . Kate tells Jim that the government want what happened kept secret , so she plans to dump the dead gannets on the ministry ' s steps , after calling the press . Mulkris and Turlough are talking . He still feels some residual uneasiness . He turns down Mulkris ' offer to pursue further parts of Eldrad and accepts that travelling with the Doctor , and even Tegan , is where he belongs .