 She uses the vortex manipulator to teleport away, and promises to come back.The first televised black Time Lord appears during this Gallifrey flashback.Black Time Lords previously appeared in the spin-off novel "The Shadows of Avalon" by Paul Cornell, published in 2000, as well as in the Big Finish Productions audio plays, in which Lord President Rassilon was played by actor Don Warrington whose likeness is used for the character in official artwork.