Woman's Voice

A woman’s voice bade the 14th Doctor and Jason Whittaker farewell from The Library, the location in which Erudmo had simulated The Three Musketeers. Given her location and use of the word ‘sweetie’, it could be inferred that this voice was in fact the duplicate consciousness of River Song as uploaded by the 10th Doctor (TV: Forest of the Dead), but this was never confirmed and left unheard by the Doctor on this occasion. (AUDIO: The Fourth Wall)