Continuity
The later New Adventure Deceit reveals that the fleck of demonic material that contaminates the TARDIS is responsible for the Doctor's moodiness over the next several novels.
The duplicates of the Doctor and Ace reappear in Return of the Living Dad.
Read more about this topic: Cat's Cradle: Witch Mark
Famous quotes containing the word continuity:
“If you associate enough with older people who do enjoy their lives, who are not stored away in any golden ghettos, you will gain a sense of continuity and of the possibility for a full life.”
—Margaret Mead (1901–1978)
“Only the family, society’s smallest unit, can change and yet maintain enough continuity to rear children who will not be “strangers in a strange land,” who will be rooted firmly enough to grow and adapt.”
—Salvador Minuchin (20th century)
“There is never a beginning, there is never an end, to the inexplicable continuity of this web of God, but always circular power returning into itself.”
—Ralph Waldo Emerson (1803–1882)