Not in My Back Yard (short story)

Summary
The Doctor takes his new companion Ayfai to Cheldon Bonniface for Christmas. The Doctor invites many of his friends for Christmas dinner, but is interrupted when the Chelbil attempt to invade Earth. The Doctor prevents the invasion only to find that he was part of his past self's greater plan to get rid of the Chelbil. The Doctor's past self erases his memory so his plan will work out the same way when he is older, while the current Doctor enjoys Christmas with his friends.

Characters

 * Eighth Doctor
 * Ayfai
 * Goilin B
 * Jerry
 * Giles Owen
 * Maria Owen
 * Richard Grayson
 * Philip Galt
 * Kelly Moore
 * Alistair Gordon Lethbridge-Stewart
 * Doris Lethbridge-Stewart
 * Seventh Doctor

Continuity

 * The Doctor mentions that Bernice Summerfield and Jason Kane were married in Cheldon Bonniface. (NA: Happy Endings)

Timeline

 * This story occurs after ST: Suns and Mothers
 * This story occurs before BFA: Mary's Story