<P> `` Let 's Kill Hitler '' establishes that Melody was trained by the Silence to kill the Doctor . At some point after regenerating in New York , Melody becomes Rory and Amy 's childhood friend Mels ( Maya Glace - Green ) and grew up with them . When adult Mels ( Nina Toussaint - White ) is shot , and regenerates into her next incarnation ( Alex Kingston ) , she proceeds to do what she was created for : assassinate the Doctor . Persuaded she will one day become River Song , who the Doctor cares deeply about and places in great trust , Melody chooses to resurrect the Doctor with her own regenerative energy , losing any future regenerations . The Doctor learns , however , that it is she who kills him in the future . While she is recovering in bed , the Doctor gives her the blank TARDIS - shaped / coloured diary , and in an epilogue it is revealed that Melody ( now River ) wants to study archaeology . At the end of `` Closing Time '' , on the day she receives her doctorate , the Silence and Kovarian recapture her and trap her in the space suit in order to kill the Doctor as history will record . In the series finale `` The Wedding of River Song '' , River refuses to kill the Doctor as she is supposed to , creating an alternate reality in which time has frozen and all realities are occurring at once . In order to restart time and repair reality , the two of them must touch . The Doctor marries River and convinces her to repair the timeline by letting her know that he plans to fake his own death and how . River goes to prison for his murder in order to corroborate the deception , though it is established that she regularly breaks out of prison to go on dates and adventures with him with the aid of hallucinogenic lipstick and other tricks . </P>
<P> `` Let 's Kill Hitler '' establishes that Melody was trained by the Silence to kill the Doctor . At some point after regenerating in New York , Melody becomes Rory and Amy 's childhood friend Mels ( Maya Glace - Green ) and grew up with them . When adult Mels ( Nina Toussaint - White ) is shot , and regenerates into her next incarnation ( Alex Kingston ) , she proceeds to do what she was created for : assassinate the Doctor . Persuaded she will one day become River Song , who the Doctor cares deeply about and places in great trust , Melody chooses to resurrect the Doctor with her own regenerative energy , losing any future regenerations . The Doctor learns , however , that it is she who kills him in the future . While she is recovering in bed , the Doctor gives her the blank TARDIS - shaped / coloured diary , and in an epilogue it is revealed that Melody ( now River ) wants to study archaeology . At the end of `` Closing Time '' , on the day she receives her doctorate , the Silence and Kovarian recapture her and trap her in the space suit in order to kill the Doctor as history will record . In the series finale `` The Wedding of River Song '' , River refuses to kill the Doctor as she is supposed to , creating an alternate reality in which time has frozen and all realities are occurring at once . In order to restart time and repair reality , the two of them must touch . The Doctor marries River and convinces her to repair the timeline by letting her know that he plans to fake his own death and how . River goes to prison for his murder in order to corroborate the deception , though it is established that she regularly breaks out of prison to go on dates and adventures with him with the aid of hallucinogenic lipstick and other tricks . </P>
when did the doctor give river her diary
when did the doctor give river her diary
`` Let 's Kill Hitler ''
`` Let 's Kill Hitler ''