" Stop - don't move!" " What is it?" "It's another test, I think." "The people who built this city... they didn't go in for ornamental floors, did they?" "I don't understand." "No, neither do I." "Tell me, have you ever tried Venusian hopscotch?" "No, it's a silly question." "You wouldn't have done." "Now's your chance to learn." "I want you to do exactly what I do, alright?" "Now jump." "Good." "Now the next two white triangles." "No, no, no!" "Not the red, the white!" "That's it." "And the other foot in the other white triangle." "Good." "Don't touch the red." "Now stay exactly where you are and give me your hand." "When I count three, you jump, and don't touch any of those squares." "One...two...three - right, jump!" "Well done, that's rather a jolly game, don't you think?" "Was that really necessary, Doctor?" "Yes, I think so." "Let me show you something." "Five piestas - do I need five piestas?" "No, I don't think so." "Right then - just you watch this." "Tilt!" "Right, let's go and see what other pleasures they have in store for us." "Proceed with all caution." "This territory will be classified as hostile." "It is understood." "Alert!" "Alert!" "Excessive electrical charge received!" "Damage report?" "Non-conductive shielding burnt out." "Sensors register receiving 7000 volt electrical charge." "Weapon evidently designed to destroy humanoid tissue." "We will continue." "Wait - observe." "This evidence suggests that city is indestructible." "Proceed." " An empty room." " Don't be too sure." "Moving inside this city is like being inside a living thing." "Yes - its bloodstream rather than its stomach." "We're being moved around like microbes, Bellal." "And all the time getting closer to the heart." " Sarah!" " Shh!" "Keep your voice down." "What happened to you?" "Where's the Doctor?" "He's gone into the city." "He's going to try and black out the beacon." "What's he want us to do?" "You must be ready for take-off the moment the power comes back on." "Remember, it comes back on for the Daleks too." "Yes, I know." "How much parrinium have you found?" "Well, there's more than..." "More than enough." "All those bags are full." "Now...we have to find some way of getting it aboard your ship." " With the Daleks standing guard over us?" " We've got to try somehow!" "Nothing, absolutely nothing." "A room without a clue, yet everything within this city has..." "has got a function." "This room must be here for a purpose." "Perhaps we have come as far as we are permitted." "No." "We'll have to start over again." "Try in that corner, will you?" "There's a good chap." "You know, I have a feeling..." "Bellal - don't!" "Bellal?" "!" "Bellal, don't, now listen to me." "Don't fire that gun." "Remember why we're here." "Remember why we came to this city." "Bellal, I'm your friend." "Your friend - you know that." "Don't fire that gun." " What happened?" "What is it?" " There was a light that shone in my eyes." "A blinding light..." "Yes, whatever it is, we seem to have qualified for the next test." " Do you feel ready to go on?" " No...but we must." "Yes." "Come on, old chap." "You will climb to the summit and place the explosives on the beacon." "And if we refuse?" "The girl we are holding as hostage will be exterminated." "You will obey!" "You will be in range of my fire at all times." "Well, let's...get on with it," "Okay." "Jill, are there any empty parrinium bags?" "Yes, there are some right over by the workings." "Why?" "I've got an idea." "So go over and get them while I keep watch." "Hurry!" "Right." "Now, the first thing..." "we've got to do is get these filled." "Anything will do." "If the Doctor does manage to restore power, we have to be ready." "We must be getting very close to the centre of the city by now." "We've come quite a way without any tests." "Perhaps we're safe now?" "I shouldn't be too sure." "Have you any idea why the city should be testing us in this way?" "What do you mean?" "They could have destroyed us dozens of times." "Instead they give us a chance to survive by using our intelligence." " And it has a purpose for this?" " Oh yes." "By passing these tests we've proved that we have an intelligence level that could be useful." "We might have some knowledge or science... that they could add to their databanks." "Now what?" "Well, if I'm right... the ultimate test will be an assault on our sanity." "So be ready for it." " Bellal, fight it!" " No!" "Fight it Bellal!" "It's an illusion!" "It's an illusion!" "You have no substance!" "..." "No truth!" "You do not exist!" "..." "You do not exist!" "Alright, old chap." "It's all over now." "It's all over." "That's it." " What is it?" " Look..." "Our entrance must have created a current of air which broke the surface tension." "This is the brain of the city?" "The brain and the nervous system which we've go to destroy." "Doctor, the city defies all attempts to destroy it." "We can't end its power." "I think I know a way." "Doctor!" " Mmm, what is it?" " Doctor, come here!" " What is it?" " Look!" " We haven't got much time." " What is it?" "What's happening?" "The city is creating antibodies." "They're trying to neutralise us." "Now keep a very close eye on them." "Let me know the moment they're complete." "If we set the charges on this main support, that should be close enough." "Right, set the detonator!" " Well let me do it." " No." "Look, that Dalek down there can see every move we make!" "Now give me the charge!" "One charge is enough to damage the beacon" "This one we keep." "Work to commence at dawn." "Move!" "Move!" "Move!" "Move!" "Human female has escaped!" "I have failed!" "Female prisoner has escaped!" "I have failed!" "Self destruct!" "I have failed - destruct!" "I have failed - destruct!" "Failed!" "Failed!" "..." "Doctor!" " I think you should come now!" " Yes, alright, I've nearly finished." " But what are you doing?" " Psychological warfare." "I'm trying to destroy the city's brain." "Engineer what in human terms is called a nervous breakdown." "Can it be done?" "The computer is a machine of logic, it cannot stand paradoxes." "The brain..." "Halt." "Stay where you are - do not move." "Halt!" "Halt!" "Halt or you will be exterminated!" "Assist!" "Assist!" "Exxilon mutants must be exterminated!" "Alert!" "Evacuate!" "Evacuate!" "Evacuate!" " The floor!" " It should be safe now - come on!" "Alert!" "Alert!" "Evacuate!" "Evacuate!" "Evacuate!" "Retire to city entrance!" "Faster!" "Faster!" "I will cover you!" "I will cover you!" "Faster!" "Faster!" "..." "The controls are beginning to break down." "It's working." "Come on." " I never thought we would escape." " The battle's not over yet." "The Daleks will do everything they can to stop that Earth ship from getting away." "Come on!" "Report!" "Explosive device in position." "Detonation will occur shortly and power circuits will be restored." "Prepare for immediate take-off." "The prisoners will load the parrinium aboard our ship." "Where is the girl you were holding?" "Where's Jill?" "She escaped during darkness." "Now our work is complete, she is of no consequence." "You will load the parrinium - move!" " They're getting ready to leave." " And we are powerless to stop them." "They'll cause the maximum havoc and destruction before they go." "Why?" "It's their scorched planet policy." "Doctor!" "How did it go?" "We've just come from the Earth mission ship." "It's all set for take-off the moment we get full power." " Good." " But I can't handle the ship." " We must free Peter and Lt Galloway." " That's not going to be so easy." "Come over here and see for yourself, come on." "This is it...five seconds...four..." "three...two...one..." "All power restored." "The beacon!" "They've destroyed the beacon!" "Move!" "Move!" "Don't prolong the agony." "It's obvious you mean to kill us." "Why don't you get on with it?" "It is not necessary." "You will perish with the rest of the creatures." "What had you in mind?" "We have all the parrinium we need." "With it, we can force the space powers to accede to our demands." "If they do not, millions of people on the outer planets will perish." "Don't you think Earth will send another mission?" "Now that the power barrier has been broken, we can have another ship here in less than a month." "I imagine the Daleks have already taken that into account, Peter." "Correct." "When our ship is in space, we will fire a plague missile on to the surface of this planet." "The plague will destroy all life and make further landings here impossible!" "Galloway, for God's sake, use the bomb!" "Come on, get out of here quick or we'll be caught in the exhaust blast!" "Well, it's not much consolation but at least they don't have the parrinium." "What do you mean?" "The Daleks have only got bags of sand." "Jill and I loaded to real parrinium aboard the Earth ship." "I should never have trusted Galloway." "Had one of the Dalek bombs - could have stopped them with it, damaged their ship." "If I knew where he was..." "We are free of planet's atmosphere." " Prepare to launch plague missile." " I obey." "Galloway..." "He must have hidden away when we put the bags on board." "He did his duty." "Now you must do yours." "Get that parrinium to where it's needed." "Doctor - look!" "Look at the city!" "That's rather a pity in a way." "Now the universe is down to six hundred and ninety-nine wonders..."