Fallen Angel ( short story ) Fallen Angel was the second story in the anthology " Decalog " . It was written by Andy Lane . It featured the Second Doctor , Jamie McCrimmon and Zoe Heriot . Summary . Constable Sharpless is on patrol one night when he encounters a man carrying a large rectangular package . The man is singing , and Sharpless warns him to behave himself . Before the man walks off , he shows the painting he is carrying to Sharpless , and claims it is a Reubens . Sharpless hears a commotion as Sergeant Amies heads for him . There has been a robbery . Amies tells Sharpless that someone stole a painting . Sharpless worries for a moment , but is relieved when Amies describes the stolen painting as something different . As the man , whose name is Lucas Seyton , walks down the street , he hears a noise . In an alley , a small man is being attacked by three larger men . Seyton decides to help out , and notices that the men appear to be made of metal . The little man tries to warn him off , saying the robots can fly . One shoots at Seyton but he evades it . When the two policemen arrive on the scene , the robots kill them in an explosion . After a scuffle , during which Seyton incapacitates the robots , he and the man , who is called the Doctor , leave the scene , with Seyton retrieving the painting he had stashed away earlier . Seyton takes the Doctor home and feeds him . He explains that he steals items from people who have committed some crime but can ' t be punished . He shows the Doctor a mechanical duck that he stole . The Doctor explains the robots to him : they have been programmed to guard the inhabitants of a house , but their programming didn ' t recognise when the inhabitants died . The Doctor and his friends ended up in the house ; the Doctor was able to get away but his two friends are trapped inside . Seyton offers to help the Doctor rescue his friends . He takes the Doctor to an airfield where his friend Paul Kettering has a two - seater aeroplane . Kettering flies the plane while Seyton mans the gun . As they fly towards the house , they are once again attacked by the robots . Seyton destroys one , then another , but the third is in his blind spot . It reaches into the plane and throws Seyton out . Seyton activates his parachute and notes that someone else parachuted out of the plane ; however , the plane crashes before the third man can escape . Seyton loses consciousness . He awakens to see the Doctor ' s face . Seyton spends little time mourning his friend ; Seyton suggests they examine one of the robot ' s bodies to see if there is a security activation device that will allow them to get into the house . When they find it , Seyton has the Doctor ride on his shoulders as a precaution . Inside the house , the Doctor explains that there is a kind of blind spot around the house : people can see it , but they forget about it soon after . The Doctor is overjoyed to find his TARDIS . Jamie and Zoe poke their heads out the door ; they are safe as long as they stay in the TARDIS . The Doctor climbs down from Seyton ' s shoulders , and to their horror they see hundreds of metallic spiders approaching . Jamie and Zoe retreat into the TARDIS , while Seyton and the Doctor run . They find the room where the dead bodies of three Crustacoids are located . The Doctor admits that he programmed the robots , and he didn ' t think to program them for the eventuality of their captives ' deaths . As the spiders make their way into the room , Seyton and the Doctor jump out a window . A spider grabs Seyton , and he expects to die , but suddenly the spider explodes . It ' s Kettering , who survived the plane crash and took the gun from the plane . He proceeds to destroy the metal spiders . The Doctor explains to Jamie , Zoe , Seyton and Kettering that the Crustacoids were criminals who had been imprisoned here by his people . He promises that the house will be cleared up . Seyton gives the Doctor the mechanical duck as a parting gift . As the Doctor and his friends leave , Seyton and Kettering start to forget the adventure they ' ve just had .