The Screams of Death ( comic story ) The Screams of Death was a " Doctor Who Magazine " comic strip featuring the Eleventh Doctor and Amy Pond . Summary . The Doctor takes Amy for a visit to the opera in Paris , 1858 , where young women become magnificent singers under the tutoring of Monsieur Valdemar . In the shadows , screams mean only one thing — death . Plot . Part 1 : The Screams of Death . In 1858 Paris , Cosette visits the residence of Monsieur Valdemar to audition for a role in the opera . Despite her lacking the talent to carry a tune , Valdemar tells her he believes he can help her . He tells her to look into his eye s , which begin to glow green . . . Several months later , the Doctor takes Amy for a night at the opera . Cosette is performing , and Amy marvels that she ' s never heard such good singing . The Doctor notices that she has a reduced blinking rate , as though she was in a hypnotic trance . Outside , Valdemar escorts Cosette away as a man , Louis , begs her to see him . The Doctor deduce s that he is her ex - boyfriend . In a café , Louis tells the Doctor and Amy that they were engaged to be married before she went to see Valdemar , and now she acts as if she doesn ' t even know him . They are interrupted by a scream , and rush outside to find the dead body of a homeless man with blood around his ear s . They realise that the scream was not his but a young woman ' s , but are forced to flee by the arrival of the police . Later , the three break into Valdemar ' s house through the roof , to find a room full of girls from the opera in an artificially - induced catatonia . They also find a DNA sequencer , " a machine for decoding genetic inheritance " . Valdemar returns and they all hide . He awakens the girls , who now have green glowing eyes and a green gas being released from their mouths . He gives them a list of names of people to locate and obtain a genetic sample of . When he selects his victims , they will sing them to their deaths . The girls then fly out into the night to obtain the samples , and Valdemar reveals that he knows of the Doctor , Amy and Louis ' s presence . The Doctor asks him how the levitation works , but he decides that they have already seen too much and cannot be allowed to leave . He finally awakens Cosette , who he commands to sing to them all . She lets out a deathly screech , and the Doctor , Amy and Louis futilely cover their ears . Part 2 : The Legacy of Blood . In Salzburg , 2098 , Eldritch Valdemar is found guilty of treason , murder , mental domination , and perverting the human form by genetic manipulation as leader of the eugenic cult . He condemns his followers , who sold him out in return for their freedom . He declares that he will have his revenge , before apparently being executed . Back in 1858 Paris , the Doctor , Amy and Louis awaken chained to a wall . Valdemar commands Cosette to obtain a genetic sample from each of them by kissing them . Louis sees Valdemar ' s list of targets and realises that it ' s all the same four surnames . The Doctor realises that he is trying to get rid of these people ' s descendants by preventing them from ever having been born . Valdemar admits that he is trying to prevent the treachery of those he trusted most by erasing them from time . He needs the genetic samples from them to ensure that they aren ' t his ancestors , and that he does not accidentally prevent himself from existing as well . He believes that at the point of his execution he was miraculously transported back through time . As the opera girls return he leaves them to decode their genetic samples . Louis realises that the Doctor and Amy are from the future , as Amy uses a hairpin to pick the locks . They go back upstairs , only to be caught yet again by Valdemar . He declares that the Doctor is not of this world and Amy is not of his heritage , and commands Cosette to sing them to their deaths . However , Louis threatens to poison himself , realising that he must be one of Valdemar ' s ancestors . Faced with this threat , Valdemar leaves to murder the ancestors of his enemies , but Louis manages to stop Cosette from going with him . The Doctor then uses Cosette to follow him to Notre Dame , where he tells Valdemar that he cannot change his own past . When Valdemar decides to instead eradicate all obstacles starting with him , the Doctor uses his sonic screwdriver to set off the bell . This frees the girls , who turn on Valdemar . Angry for his deceit and betrayal , they drive him over the edge , and he falls to his death . Later , in the café , the Doctor and Amy ensure that Cosette is back to normal ( along with her singing abilities , or lack thereof ) , then return to the TARDIS . Louis thanks them for their help , and watches their dematerialisation . Shocked , he turns to Cosette , but she has vanished . Chiyoko watches and smiles from the shadows . . .