<P> As shown in "The Impossible Astronaut", the Doctor joins his friends at Lake Silencio, and meets the astronaut, now known to be River Song, Amy and Rory's daughter . River, although psychopathically trained to kill the Doctor, fell in love with him; she is now being forced to kill the Doctor in the automated astronaut suit contrived by the Silence and Madame Kovarian . Unable to fight the suit's control, the Doctor says he forgives her and reminds her that the event is inevitable . River, despite his warning against interfering with a fixed point in time, surprises the Doctor by draining the astronaut suit's weapons systems and averting his death . Time becomes "stuck" as a result and begins to disintegrate; all of Earth's history begins to run simultaneously at a fixed moment of 5: 02 p.m. on 22 April 2011 . </P> <P> In London, an alternate timeline's Holy Roman Emperor Winston Churchill takes the Doctor, his "soothsayer", out from his locked cell to ask him about the condition of time . The Doctor explains the preceding events, as tally marks begin appearing on his arms, indicating the presence of the Silence . After noticing a Silence nest overhead, they are rescued by Amy and a squad of soldiers under her command . Due to the effects of the crack in her bedroom, Amy is cognizant of the altered timeline, though she is unaware that her trusted captain is her husband Rory . Amy takes the Doctor to "Area 52", a hollowed - out Giza pyramid, where they have captured over a hundred Silence and Madame Kovarian . River is also there; aware of the consequences of her actions, she refuses to allow the Doctor to touch her, an event that would "unfreeze" time and allow it to resume . Everyone except the Silence wear "eyedrives", external memory eye patches which enable them to counter the Silence's memory - proof nature . </P> <P> When the Silence see the Doctor, they stir and begin to escape confinement; it is part of a trap arranged by Kovarian . The Silence then overload everyone's eyedrives, causing effects varying from great pain to death; Madame Kovarian not excepted . The Doctor and River escape to the top of the pyramid while Amy and Rory fight off a wave of Silence, and Amy realises who Rory is . Madame Kovarian dislodges her own eyedrive as it begins to overload, but Amy forces it back in place with the intention of killing her as revenge for her kidnapping baby daughter (Melody Pond). Amy and Rory regroup with River and the Doctor . River tries to convince the Doctor that this alternative frozen timeline is acceptable, but the Doctor explains that all of reality will soon break down if the fixed point event does not occur . River puts out a distress call that the Doctor is dying, and the skies fill with grateful friends arriving to help . River ways that if she has to kill him she will suffer just as much as the entire universe dying from time breaking down . The Doctor marries River on the spot and whispers in her ear, declaring that he told her his name . He then requests that River allow him to prevent the universe's destruction . The two kiss, time restarts, reality returns to normal, and the Doctor dies . </P> <P> Sometime later, River, shortly after the events of "Flesh and Stone" in her timeline, visits Amy and Rory's home . Amy expresses her need to talk to the Doctor, mourning that she cannot . River reveals that the Doctor lied about telling her his name; instead he had said "Look into my eye", revealing that it was not really him, but the shape - shifting Teselecta at Lake Silencio, with the Doctor and TARDIS safely miniaturised within . Rory sees Amy and River dancing in giddy joy, and comes out to hear the good news . Elsewhere, the Doctor returns Dorium's head to its catacomb, and explains that his perceived death will enable him withdraw, to be forgotten, as he had become "too big", and was getting too much attention . As the Doctor leaves, Dorium warns that the prophecies still await him, as does the question that must never be answered and is in plain sight..."Doctor who?" </P>

What did doctor who whisper to river song