when the doctor revealed he knew river was there all along on doctor who
River Song (Doctor Who) River appears again in the fifth episode of the seventh series, titled "The Angels Take Manhattan" (2012), where she encounters the Doctor and her parents; Rory and Amy, in 1930s New York City. At this later point in her timeline, she is a professor of archaeology and a free woman, having been released from the Stormcage Prison after the Doctor erased all evidence of his existence. When her parents are sent permanently back in time by the Weeping Angels, to be forever parted from the Doctor, she arranges for Amy to leave the Doctor a message in the form of an epilogue in a book they have been reading written by her in the 1930s. Although she agrees to travel with the Doctor for the time being, she declines his offer of being a full-time companion. In "The Name of the Doctor" (2013), the deceased River's consciousness is summoned from the Library computer, where she has existed since "Forest of the Dead", into a psychic 'conference call' by the Doctor's friend Madame Vastra (Neve McIntosh). There, she and Clara (Jenna Coleman) learn that the Doctor's grave, "his greatest secret", has been discovered. River maintains the psychic link with Clara after the call ends, and counsels her throughout the discovery of the Doctor's tomb, although she seems to be invisible to everyone else. When the Doctor and his companions are threatened by the Great Intelligence, she whispers the Doctor's name in order to open his tomb which is inside the TARDIS. After Clara enters the Doctor's time stream to save him from the Great Intelligence, who entered it first so he could destroy the Doctor in all his regenerations, the Doctor reveals that he could see River all along, but had been avoiding confronting her continued existence because it was too painful for him to bear. After he kisses her, River feels closure and fades away. However, before disappearing River points out that her continued presence indicates that Clara has not been destroyed by entering his time stream; and therefore, he can save her.