Lackaday Express (short story)

Summary
to be added

Characters

 * The Doctor
 * Nyssa
 * Tegan Jovanka

Continuity

 * The Doctor and Tegan are still arguing about Adric's death and the former's refusal to go back in time and save him. (TV: Earthshock)
 * Tegan draws a picture of two Cybermen. (TV: Earthshock)
 * Nyssa refers to the Traken Union. (TV: The Keeper of Traken)