Monsters ( short story ) Monsters was the sixteenth short story in the Short Trips anthology " Short Trips and Side Steps " . It was written by Tara Samms . It featured the Seventh Doctor and Ace . Summary . Kirsty Fisher is going to see Dr Rochford with her mother . Her mother , who suffers from Munchausen by proxy , thrives on the attention she gets as mother of a sick child , and Kirsty believes her mother gives her things in her food to make her sick . The doctor tries to convince Mrs Fisher that Kirsty is not that sick , but Mrs Fisher has done her homework and comes up with new suggestions of diseases . Meanwhile , Kirsty ' s brother David has gotten involved with a bad crowd of boys . They are hanging out and smoking . David sees a strange man apparently watching them . When they run out of cigarette s , Nigel , the gang leader , goads David into Mr Golieweski ' s newsagent ' s shop . David sees the strange man talking to a girl who has the word " Ace " written on her bomber jacket . David buys cigarettes , while the girl Ace watches him . When David leaves , he hears her start to ask Mr Golieweski some questions . He thinks the strange man is staring at him , but the man is actually staring at a poster advertising a meeting for a flying - saucer watching society . One of the gang members , Barney , tries to beg money off the man , whom Ace calls " Professor " , but he doesn ' t have any . As the boys leave , Ace and the Doctor discuss plans to attend the alien - watching meeting the next day . Meanwhile , David is at home in the bathroom , and Kirsty comes in , immediately becoming sick in the toilet . He doesn ' t believe what she says about their mother , and says she should join the flying - saucer crowd . She decides to run away and sneaks out the next afternoon to go to the meeting . She goes to the newsagent to find out about the meeting . Ace sees that Kirsty is skipping school and takes her to the meeting with her . Meanwhile , Nigel ' s gang has decided to vandalise a mausoleum . When they break in , Nigel makes David go first . The rest of the boys enter and start breaking things . Kirsty is disappointed by the meeting . Group Leader Chester and a middle - aged woman are the only other ones present . Chester describes the aliens , whom he calls " Friends " , but Ace criticises him and calls him a pervert . The two girls leave , and Kirsty runs off . Ace follows her , but Kirsty thinks she has lost her . Kirsty goes to Mr Golieweski ' s and orders some chocolate . At the mausoleum , the torch goes out , and the boys hear strange noises . The other boys run off , and David is confronted by the Doctor . Kirsty starts to feel sick and dizzy . Ace enters the newsagent shop , and when Mr Gloieweski turns to talk to Ace , Kirsty notices that his head has a flap of skin covering something . Golieweski throws Ace across the room as Kirsty starts to lose consciousness . David confronts the gang , but Nigel says they are going to break into Golieweski ' s because the shop appears empty . In the shop , Kirsty and Ace are locked in a cupboard . They talk , and Kirsty tells Ace about her mum . David is sent to break into the shop , but he steps on something soft . It is the Doctor , who tells David to be still . Something alien grabs David , but the Doctor tells it to let go . It drops David , and the Doctor talks to it . It grabs the Doctor , who tells David to run . Ace has managed to break open the lock on the cupboard , and she hits the alien in the head with David ' s dropped hammer . David is mocked by the gang when he runs out , but then a blue light flashes , and the boys run away . The Doctor ushers Ace and Kirsty out of the shop , as the alien ' s people have come for him to punish him . The Doctor won ' t let Kirsty look , but she hears a sort of explosion that blocks her ears and a scream . When she looks , the shop is gone . David goes home , and Kirsty runs home too . Ace is disappointed , because she thought Kirsty could go with them in the TARDIS . At home , Kirsty tells her mum the whole story . Her mum thinks Kirsty should have some special tests . Notes . " to be added " Continuity . " to be added "