Just as this season began back at Easter with a dedication to the late Elisabeth Sladen, so it concludes with a homage to that other giant of Doctor Who who died this year – Nicholas Courtney.

As the camera zooms in, she turns. It is River Song, with an eyepatch over her right eye. She smiles.

Dorium is back in the series finale, The Wedding of River Song.

But each seems to have one they're most fond or attached to. As shown in Doctor Who season 6, episode 13, "The Wedding of River Song," River initially attempts to resist the Silence's control.